Home / 87,115.86-130,673.34-57,526.65

Finding the Fourth Proportional to 87,115.86, 130,673.34 and 57,526.65

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Solution

The fourth proportional to 87,115.86, 130,673.34 and 57,526.65 is: 86,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,115.86 : 130,673.34 = 57,526.65 : x
  2. Step 2: Convert to fraction form
    87,115.86/130,673.34 = 57,526.65/x
  3. Step 3: Cross multiply
    87,115.86x = 130,673.34 × 57,526.65
  4. Step 4: Simplify right side
    87,115.86x = 7,517,199,494.51
  5. Step 5: Solve for x
    x = 7,517,199,494.51/87,115.86
  6. Step 6: Final answer
    x = 86,289.68

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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.