Home / 55,587.06-76,711.05-30,434.94

Finding the Fourth Proportional to 55,587.06, 76,711.05 and 30,434.94

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Solution

The fourth proportional to 55,587.06, 76,711.05 and 30,434.94 is: 42,000.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,587.06 : 76,711.05 = 30,434.94 : x
  2. Step 2: Convert to fraction form
    55,587.06/76,711.05 = 30,434.94/x
  3. Step 3: Cross multiply
    55,587.06x = 76,711.05 × 30,434.94
  4. Step 4: Simplify right side
    55,587.06x = 2,334,696,204.09
  5. Step 5: Solve for x
    x = 2,334,696,204.09/55,587.06
  6. Step 6: Final answer
    x = 42,000.71

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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.