Home / 55,715.68-76,886.32-30,564.96

Finding the Fourth Proportional to 55,715.68, 76,886.32 and 30,564.96

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Solution

The fourth proportional to 55,715.68, 76,886.32 and 30,564.96 is: 42,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,715.68 : 76,886.32 = 30,564.96 : x
  2. Step 2: Convert to fraction form
    55,715.68/76,886.32 = 30,564.96/x
  3. Step 3: Cross multiply
    55,715.68x = 76,886.32 × 30,564.96
  4. Step 4: Simplify right side
    55,715.68x = 2,350,027,295.35
  5. Step 5: Solve for x
    x = 2,350,027,295.35/55,715.68
  6. Step 6: Final answer
    x = 42,178.92

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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.