Home / 74,008.08-102,132.90-42,179.94

Finding the Fourth Proportional to 74,008.08, 102,132.90 and 42,179.94

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Solution

The fourth proportional to 74,008.08, 102,132.90 and 42,179.94 is: 58,209.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,008.08 : 102,132.90 = 42,179.94 : x
  2. Step 2: Convert to fraction form
    74,008.08/102,132.90 = 42,179.94/x
  3. Step 3: Cross multiply
    74,008.08x = 102,132.90 × 42,179.94
  4. Step 4: Simplify right side
    74,008.08x = 4,307,959,594.03
  5. Step 5: Solve for x
    x = 4,307,959,594.03/74,008.08
  6. Step 6: Final answer
    x = 58,209.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.