Home / 86,429.43-119,319.68-59,715.77

Finding the Fourth Proportional to 86,429.43, 119,319.68 and 59,715.77

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Solution

The fourth proportional to 86,429.43, 119,319.68 and 59,715.77 is: 82,440.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,429.43 : 119,319.68 = 59,715.77 : x
  2. Step 2: Convert to fraction form
    86,429.43/119,319.68 = 59,715.77/x
  3. Step 3: Cross multiply
    86,429.43x = 119,319.68 × 59,715.77
  4. Step 4: Simplify right side
    86,429.43x = 7,125,266,120.04
  5. Step 5: Solve for x
    x = 7,125,266,120.04/86,429.43
  6. Step 6: Final answer
    x = 82,440.28

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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.