Home / 55,715.50-76,887.39-30,565.54

Finding the Fourth Proportional to 55,715.50, 76,887.39 and 30,565.54

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Solution

The fourth proportional to 55,715.50, 76,887.39 and 30,565.54 is: 42,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,715.50 : 76,887.39 = 30,565.54 : x
  2. Step 2: Convert to fraction form
    55,715.50/76,887.39 = 30,565.54/x
  3. Step 3: Cross multiply
    55,715.50x = 76,887.39 × 30,565.54
  4. Step 4: Simplify right side
    55,715.50x = 2,350,104,594.54
  5. Step 5: Solve for x
    x = 2,350,104,594.54/55,715.50
  6. Step 6: Final answer
    x = 42,180.45

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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.