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Finding the Fourth Proportional to 81,424.54, 112,370.47 and 45,626.08

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Solution

The fourth proportional to 81,424.54, 112,370.47 and 45,626.08 is: 62,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424.54 : 112,370.47 = 45,626.08 : x
  2. Step 2: Convert to fraction form
    81,424.54/112,370.47 = 45,626.08/x
  3. Step 3: Cross multiply
    81,424.54x = 112,370.47 × 45,626.08
  4. Step 4: Simplify right side
    81,424.54x = 5,127,024,053.86
  5. Step 5: Solve for x
    x = 5,127,024,053.86/81,424.54
  6. Step 6: Final answer
    x = 62,966.57

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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.