Home / 71,528.08-98,640.18-42,843.16

Finding the Fourth Proportional to 71,528.08, 98,640.18 and 42,843.16

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Solution

The fourth proportional to 71,528.08, 98,640.18 and 42,843.16 is: 59,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,528.08 : 98,640.18 = 42,843.16 : x
  2. Step 2: Convert to fraction form
    71,528.08/98,640.18 = 42,843.16/x
  3. Step 3: Cross multiply
    71,528.08x = 98,640.18 × 42,843.16
  4. Step 4: Simplify right side
    71,528.08x = 4,226,057,014.17
  5. Step 5: Solve for x
    x = 4,226,057,014.17/71,528.08
  6. Step 6: Final answer
    x = 59,082.49

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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.