Home / 81,278.08-112,159.23-45,461.17

Finding the Fourth Proportional to 81,278.08, 112,159.23 and 45,461.17

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Solution

The fourth proportional to 81,278.08, 112,159.23 and 45,461.17 is: 62,733.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,278.08 : 112,159.23 = 45,461.17 : x
  2. Step 2: Convert to fraction form
    81,278.08/112,159.23 = 45,461.17/x
  3. Step 3: Cross multiply
    81,278.08x = 112,159.23 × 45,461.17
  4. Step 4: Simplify right side
    81,278.08x = 5,098,889,822.10
  5. Step 5: Solve for x
    x = 5,098,889,822.10/81,278.08
  6. Step 6: Final answer
    x = 62,733.89

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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.