Home / 81,437.47-112,389.92-51,248.66

Finding the Fourth Proportional to 81,437.47, 112,389.92 and 51,248.66

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Solution

The fourth proportional to 81,437.47, 112,389.92 and 51,248.66 is: 70,727.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,437.47 : 112,389.92 = 51,248.66 : x
  2. Step 2: Convert to fraction form
    81,437.47/112,389.92 = 51,248.66/x
  3. Step 3: Cross multiply
    81,437.47x = 112,389.92 × 51,248.66
  4. Step 4: Simplify right side
    81,437.47x = 5,759,832,541.26
  5. Step 5: Solve for x
    x = 5,759,832,541.26/81,437.47
  6. Step 6: Final answer
    x = 70,727.06

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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.