Home / 86,715.47-119,686.65-52,716.75

Finding the Fourth Proportional to 86,715.47, 119,686.65 and 52,716.75

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Solution

The fourth proportional to 86,715.47, 119,686.65 and 52,716.75 is: 72,760.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,715.47 : 119,686.65 = 52,716.75 : x
  2. Step 2: Convert to fraction form
    86,715.47/119,686.65 = 52,716.75/x
  3. Step 3: Cross multiply
    86,715.47x = 119,686.65 × 52,716.75
  4. Step 4: Simplify right side
    86,715.47x = 6,309,491,206.39
  5. Step 5: Solve for x
    x = 6,309,491,206.39/86,715.47
  6. Step 6: Final answer
    x = 72,760.85

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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.