Home / 61,428.78-92,031.93-28,176.66

Finding the Fourth Proportional to 61,428.78, 92,031.93 and 28,176.66

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Solution

The fourth proportional to 61,428.78, 92,031.93 and 28,176.66 is: 42,213.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,428.78 : 92,031.93 = 28,176.66 : x
  2. Step 2: Convert to fraction form
    61,428.78/92,031.93 = 28,176.66/x
  3. Step 3: Cross multiply
    61,428.78x = 92,031.93 × 28,176.66
  4. Step 4: Simplify right side
    61,428.78x = 2,593,152,400.75
  5. Step 5: Solve for x
    x = 2,593,152,400.75/61,428.78
  6. Step 6: Final answer
    x = 42,213.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.