Home / 81,339.68-112,248.24-45,529.52

Finding the Fourth Proportional to 81,339.68, 112,248.24 and 45,529.52

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Solution

The fourth proportional to 81,339.68, 112,248.24 and 45,529.52 is: 62,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,339.68 : 112,248.24 = 45,529.52 : x
  2. Step 2: Convert to fraction form
    81,339.68/112,248.24 = 45,529.52/x
  3. Step 3: Cross multiply
    81,339.68x = 112,248.24 × 45,529.52
  4. Step 4: Simplify right side
    81,339.68x = 5,110,608,488.04
  5. Step 5: Solve for x
    x = 5,110,608,488.04/81,339.68
  6. Step 6: Final answer
    x = 62,830.45

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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.