Home / 74,903.40-112,209.30-45,233.10

Finding the Fourth Proportional to 74,903.40, 112,209.30 and 45,233.10

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Solution

The fourth proportional to 74,903.40, 112,209.30 and 45,233.10 is: 67,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,903.40 : 112,209.30 = 45,233.10 : x
  2. Step 2: Convert to fraction form
    74,903.40/112,209.30 = 45,233.10/x
  3. Step 3: Cross multiply
    74,903.40x = 112,209.30 × 45,233.10
  4. Step 4: Simplify right side
    74,903.40x = 5,075,574,487.83
  5. Step 5: Solve for x
    x = 5,075,574,487.83/74,903.40
  6. Step 6: Final answer
    x = 67,761.60

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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.