Home / 93,938.40-140,948.10-54,529.20

Finding the Fourth Proportional to 93,938.40, 140,948.10 and 54,529.20

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Solution

The fourth proportional to 93,938.40, 140,948.10 and 54,529.20 is: 81,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,938.40 : 140,948.10 = 54,529.20 : x
  2. Step 2: Convert to fraction form
    93,938.40/140,948.10 = 54,529.20/x
  3. Step 3: Cross multiply
    93,938.40x = 140,948.10 × 54,529.20
  4. Step 4: Simplify right side
    93,938.40x = 7,685,787,134.52
  5. Step 5: Solve for x
    x = 7,685,787,134.52/93,938.40
  6. Step 6: Final answer
    x = 81,817.31

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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.