Home / 72,585,311.40-108,751,995.90-61,247,903.40

Finding the Fourth Proportional to 72,585,311.40, 108,751,995.90 and 61,247,903.40

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Solution

The fourth proportional to 72,585,311.40, 108,751,995.90 and 61,247,903.40 is: 91,765,559.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,585,311.40 : 108,751,995.90 = 61,247,903.40 : x
  2. Step 2: Convert to fraction form
    72,585,311.40/108,751,995.90 = 61,247,903.40/x
  3. Step 3: Cross multiply
    72,585,311.40x = 108,751,995.90 × 61,247,903.40
  4. Step 4: Simplify right side
    72,585,311.40x = 6,660,831,739,440,396
  5. Step 5: Solve for x
    x = 6,660,831,739,440,396/72,585,311.40
  6. Step 6: Final answer
    x = 91,765,559.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.