Home / 81,545.12-112,458.64-52,835.68

Finding the Fourth Proportional to 81,545.12, 112,458.64 and 52,835.68

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Solution

The fourth proportional to 81,545.12, 112,458.64 and 52,835.68 is: 72,865.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.12 : 112,458.64 = 52,835.68 : x
  2. Step 2: Convert to fraction form
    81,545.12/112,458.64 = 52,835.68/x
  3. Step 3: Cross multiply
    81,545.12x = 112,458.64 × 52,835.68
  4. Step 4: Simplify right side
    81,545.12x = 5,941,828,716.28
  5. Step 5: Solve for x
    x = 5,941,828,716.28/81,545.12
  6. Step 6: Final answer
    x = 72,865.53

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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.