Home / 65,019.20-97,528.80-40,087.40

Finding the Fourth Proportional to 65,019.20, 97,528.80 and 40,087.40

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Solution

The fourth proportional to 65,019.20, 97,528.80 and 40,087.40 is: 60,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,019.20 : 97,528.80 = 40,087.40 : x
  2. Step 2: Convert to fraction form
    65,019.20/97,528.80 = 40,087.40/x
  3. Step 3: Cross multiply
    65,019.20x = 97,528.80 × 40,087.40
  4. Step 4: Simplify right side
    65,019.20x = 3,909,676,017.12
  5. Step 5: Solve for x
    x = 3,909,676,017.12/65,019.20
  6. Step 6: Final answer
    x = 60,131.10

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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.