Home / 81,477.36-112,432.68-49,641.12

Finding the Fourth Proportional to 81,477.36, 112,432.68 and 49,641.12

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Solution

The fourth proportional to 81,477.36, 112,432.68 and 49,641.12 is: 68,501.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,477.36 : 112,432.68 = 49,641.12 : x
  2. Step 2: Convert to fraction form
    81,477.36/112,432.68 = 49,641.12/x
  3. Step 3: Cross multiply
    81,477.36x = 112,432.68 × 49,641.12
  4. Step 4: Simplify right side
    81,477.36x = 5,581,284,159.80
  5. Step 5: Solve for x
    x = 5,581,284,159.80/81,477.36
  6. Step 6: Final answer
    x = 68,501.04

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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.