Home / 83,689.24-115,490.79-45,448.52

Finding the Fourth Proportional to 83,689.24, 115,490.79 and 45,448.52

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Solution

The fourth proportional to 83,689.24, 115,490.79 and 45,448.52 is: 62,718.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,689.24 : 115,490.79 = 45,448.52 : x
  2. Step 2: Convert to fraction form
    83,689.24/115,490.79 = 45,448.52/x
  3. Step 3: Cross multiply
    83,689.24x = 115,490.79 × 45,448.52
  4. Step 4: Simplify right side
    83,689.24x = 5,248,885,479.13
  5. Step 5: Solve for x
    x = 5,248,885,479.13/83,689.24
  6. Step 6: Final answer
    x = 62,718.76

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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.