Home / 65,542.14-90,155.97-57,435.66

Finding the Fourth Proportional to 65,542.14, 90,155.97 and 57,435.66

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Solution

The fourth proportional to 65,542.14, 90,155.97 and 57,435.66 is: 79,005.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,542.14 : 90,155.97 = 57,435.66 : x
  2. Step 2: Convert to fraction form
    65,542.14/90,155.97 = 57,435.66/x
  3. Step 3: Cross multiply
    65,542.14x = 90,155.97 × 57,435.66
  4. Step 4: Simplify right side
    65,542.14x = 5,178,167,639.89
  5. Step 5: Solve for x
    x = 5,178,167,639.89/65,542.14
  6. Step 6: Final answer
    x = 79,005.17

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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.