Home / 74,200.85-102,432.64-42,363.60

Finding the Fourth Proportional to 74,200.85, 102,432.64 and 42,363.60

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Solution

The fourth proportional to 74,200.85, 102,432.64 and 42,363.60 is: 58,482.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,200.85 : 102,432.64 = 42,363.60 : x
  2. Step 2: Convert to fraction form
    74,200.85/102,432.64 = 42,363.60/x
  3. Step 3: Cross multiply
    74,200.85x = 102,432.64 × 42,363.60
  4. Step 4: Simplify right side
    74,200.85x = 4,339,415,387.90
  5. Step 5: Solve for x
    x = 4,339,415,387.90/74,200.85
  6. Step 6: Final answer
    x = 58,482.02

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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.