Home / 74,946.30-112,401.45-43,287.90

Finding the Fourth Proportional to 74,946.30, 112,401.45 and 43,287.90

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Solution

The fourth proportional to 74,946.30, 112,401.45 and 43,287.90 is: 64,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,946.30 : 112,401.45 = 43,287.90 : x
  2. Step 2: Convert to fraction form
    74,946.30/112,401.45 = 43,287.90/x
  3. Step 3: Cross multiply
    74,946.30x = 112,401.45 × 43,287.90
  4. Step 4: Simplify right side
    74,946.30x = 4,865,622,727.46
  5. Step 5: Solve for x
    x = 4,865,622,727.46/74,946.30
  6. Step 6: Final answer
    x = 64,921.45

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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.