Home / 94,931.50-131,005.69-51,913.78

Finding the Fourth Proportional to 94,931.50, 131,005.69 and 51,913.78

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Solution

The fourth proportional to 94,931.50, 131,005.69 and 51,913.78 is: 71,641.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,931.50 : 131,005.69 = 51,913.78 : x
  2. Step 2: Convert to fraction form
    94,931.50/131,005.69 = 51,913.78/x
  3. Step 3: Cross multiply
    94,931.50x = 131,005.69 × 51,913.78
  4. Step 4: Simplify right side
    94,931.50x = 6,801,000,569.41
  5. Step 5: Solve for x
    x = 6,801,000,569.41/94,931.50
  6. Step 6: Final answer
    x = 71,641.14

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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.