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Finding the Fourth Proportional to 81,541.83, 112,527.53 and 45,248.79

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Solution

The fourth proportional to 81,541.83, 112,527.53 and 45,248.79 is: 62,443.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,541.83 : 112,527.53 = 45,248.79 : x
  2. Step 2: Convert to fraction form
    81,541.83/112,527.53 = 45,248.79/x
  3. Step 3: Cross multiply
    81,541.83x = 112,527.53 × 45,248.79
  4. Step 4: Simplify right side
    81,541.83x = 5,091,734,347.94
  5. Step 5: Solve for x
    x = 5,091,734,347.94/81,541.83
  6. Step 6: Final answer
    x = 62,443.22

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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.