Home / 99,339.52-137,085.54-54,017.60

Finding the Fourth Proportional to 99,339.52, 137,085.54 and 54,017.60

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Solution

The fourth proportional to 99,339.52, 137,085.54 and 54,017.60 is: 74,542.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,339.52 : 137,085.54 = 54,017.60 : x
  2. Step 2: Convert to fraction form
    99,339.52/137,085.54 = 54,017.60/x
  3. Step 3: Cross multiply
    99,339.52x = 137,085.54 × 54,017.60
  4. Step 4: Simplify right side
    99,339.52x = 7,405,031,865.50
  5. Step 5: Solve for x
    x = 7,405,031,865.50/99,339.52
  6. Step 6: Final answer
    x = 74,542.66

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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.