Home / 99,359.76-137,117.04-54,038.28

Finding the Fourth Proportional to 99,359.76, 137,117.04 and 54,038.28

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Solution

The fourth proportional to 99,359.76, 137,117.04 and 54,038.28 is: 74,573.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,359.76 : 137,117.04 = 54,038.28 : x
  2. Step 2: Convert to fraction form
    99,359.76/137,117.04 = 54,038.28/x
  3. Step 3: Cross multiply
    99,359.76x = 137,117.04 × 54,038.28
  4. Step 4: Simplify right side
    99,359.76x = 7,409,569,000.29
  5. Step 5: Solve for x
    x = 7,409,569,000.29/99,359.76
  6. Step 6: Final answer
    x = 74,573.14

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1.5x scale

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.