Home / 71,288.91-98,372.07-42,602.90

Finding the Fourth Proportional to 71,288.91, 98,372.07 and 42,602.90

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Solution

The fourth proportional to 71,288.91, 98,372.07 and 42,602.90 is: 58,788.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,288.91 : 98,372.07 = 42,602.90 : x
  2. Step 2: Convert to fraction form
    71,288.91/98,372.07 = 42,602.90/x
  3. Step 3: Cross multiply
    71,288.91x = 98,372.07 × 42,602.90
  4. Step 4: Simplify right side
    71,288.91x = 4,190,934,969.14
  5. Step 5: Solve for x
    x = 4,190,934,969.14/71,288.91
  6. Step 6: Final answer
    x = 58,788.04

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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.