Home / 91,711.39-126,507.98-57,665.93

Finding the Fourth Proportional to 91,711.39, 126,507.98 and 57,665.93

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Solution

The fourth proportional to 91,711.39, 126,507.98 and 57,665.93 is: 79,545.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.39 : 126,507.98 = 57,665.93 : x
  2. Step 2: Convert to fraction form
    91,711.39/126,507.98 = 57,665.93/x
  3. Step 3: Cross multiply
    91,711.39x = 126,507.98 × 57,665.93
  4. Step 4: Simplify right side
    91,711.39x = 7,295,199,506.38
  5. Step 5: Solve for x
    x = 7,295,199,506.38/91,711.39
  6. Step 6: Final answer
    x = 79,545.19

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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.