Home / 99,476.10-137,288.88-57,034.50

Finding the Fourth Proportional to 99,476.10, 137,288.88 and 57,034.50

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Solution

The fourth proportional to 99,476.10, 137,288.88 and 57,034.50 is: 78,714.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,476.10 : 137,288.88 = 57,034.50 : x
  2. Step 2: Convert to fraction form
    99,476.10/137,288.88 = 57,034.50/x
  3. Step 3: Cross multiply
    99,476.10x = 137,288.88 × 57,034.50
  4. Step 4: Simplify right side
    99,476.10x = 7,830,202,626.36
  5. Step 5: Solve for x
    x = 7,830,202,626.36/99,476.10
  6. Step 6: Final answer
    x = 78,714.41

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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.