Home / 81,437.04-112,381.56-53,089.20

Finding the Fourth Proportional to 81,437.04, 112,381.56 and 53,089.20

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Solution

The fourth proportional to 81,437.04, 112,381.56 and 53,089.20 is: 73,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,437.04 : 112,381.56 = 53,089.20 : x
  2. Step 2: Convert to fraction form
    81,437.04/112,381.56 = 53,089.20/x
  3. Step 3: Cross multiply
    81,437.04x = 112,381.56 × 53,089.20
  4. Step 4: Simplify right side
    81,437.04x = 5,966,247,115.15
  5. Step 5: Solve for x
    x = 5,966,247,115.15/81,437.04
  6. Step 6: Final answer
    x = 73,262.08

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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.