Home / 96,855.74-145,502.32-57,438.71

Finding the Fourth Proportional to 96,855.74, 145,502.32 and 57,438.71

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Solution

The fourth proportional to 96,855.74, 145,502.32 and 57,438.71 is: 86,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,855.74 : 145,502.32 = 57,438.71 : x
  2. Step 2: Convert to fraction form
    96,855.74/145,502.32 = 57,438.71/x
  3. Step 3: Cross multiply
    96,855.74x = 145,502.32 × 57,438.71
  4. Step 4: Simplify right side
    96,855.74x = 8,357,465,562.81
  5. Step 5: Solve for x
    x = 8,357,465,562.81/96,855.74
  6. Step 6: Final answer
    x = 86,287.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.