Home / 42,660.50-63,938.87-30,184.12

Finding the Fourth Proportional to 42,660.50, 63,938.87 and 30,184.12

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Solution

The fourth proportional to 42,660.50, 63,938.87 and 30,184.12 is: 45,239.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,660.50 : 63,938.87 = 30,184.12 : x
  2. Step 2: Convert to fraction form
    42,660.50/63,938.87 = 30,184.12/x
  3. Step 3: Cross multiply
    42,660.50x = 63,938.87 × 30,184.12
  4. Step 4: Simplify right side
    42,660.50x = 1,929,938,387.11
  5. Step 5: Solve for x
    x = 1,929,938,387.11/42,660.50
  6. Step 6: Final answer
    x = 45,239.47

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1.5x scale

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.