Home / 93,851.28-140,778-31,521.78

Finding the Fourth Proportional to 93,851.28, 140,778 and 31,521.78

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Solution

The fourth proportional to 93,851.28, 140,778 and 31,521.78 is: 47,283.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,851.28 : 140,778 = 31,521.78 : x
  2. Step 2: Convert to fraction form
    93,851.28/140,778 = 31,521.78/x
  3. Step 3: Cross multiply
    93,851.28x = 140,778 × 31,521.78
  4. Step 4: Simplify right side
    93,851.28x = 4,437,573,144.84
  5. Step 5: Solve for x
    x = 4,437,573,144.84/93,851.28
  6. Step 6: Final answer
    x = 47,283.03

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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.