Home / 91,711.65-137,403.45-56,610.30

Finding the Fourth Proportional to 91,711.65, 137,403.45 and 56,610.30

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Solution

The fourth proportional to 91,711.65, 137,403.45 and 56,610.30 is: 84,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.65 : 137,403.45 = 56,610.30 : x
  2. Step 2: Convert to fraction form
    91,711.65/137,403.45 = 56,610.30/x
  3. Step 3: Cross multiply
    91,711.65x = 137,403.45 × 56,610.30
  4. Step 4: Simplify right side
    91,711.65x = 7,778,450,525.54
  5. Step 5: Solve for x
    x = 7,778,450,525.54/91,711.65
  6. Step 6: Final answer
    x = 84,814.20

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1.5x scale

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.