Home / 86,715.10-119,686.12-52,716.38

Finding the Fourth Proportional to 86,715.10, 119,686.12 and 52,716.38

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Solution

The fourth proportional to 86,715.10, 119,686.12 and 52,716.38 is: 72,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,715.10 : 119,686.12 = 52,716.38 : x
  2. Step 2: Convert to fraction form
    86,715.10/119,686.12 = 52,716.38/x
  3. Step 3: Cross multiply
    86,715.10x = 119,686.12 × 52,716.38
  4. Step 4: Simplify right side
    86,715.10x = 6,309,418,548.95
  5. Step 5: Solve for x
    x = 6,309,418,548.95/86,715.10
  6. Step 6: Final answer
    x = 72,760.33

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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.