Home / 81,366.02-112,279.45-54,504.19

Finding the Fourth Proportional to 81,366.02, 112,279.45 and 54,504.19

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Solution

The fourth proportional to 81,366.02, 112,279.45 and 54,504.19 is: 75,211.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,366.02 : 112,279.45 = 54,504.19 : x
  2. Step 2: Convert to fraction form
    81,366.02/112,279.45 = 54,504.19/x
  3. Step 3: Cross multiply
    81,366.02x = 112,279.45 × 54,504.19
  4. Step 4: Simplify right side
    81,366.02x = 6,119,699,641.98
  5. Step 5: Solve for x
    x = 6,119,699,641.98/81,366.02
  6. Step 6: Final answer
    x = 75,211.99

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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.