Home / 72,106.48-99,508.95-39,843.18

Finding the Fourth Proportional to 72,106.48, 99,508.95 and 39,843.18

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Solution

The fourth proportional to 72,106.48, 99,508.95 and 39,843.18 is: 54,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,106.48 : 99,508.95 = 39,843.18 : x
  2. Step 2: Convert to fraction form
    72,106.48/99,508.95 = 39,843.18/x
  3. Step 3: Cross multiply
    72,106.48x = 99,508.95 × 39,843.18
  4. Step 4: Simplify right side
    72,106.48x = 3,964,753,006.46
  5. Step 5: Solve for x
    x = 3,964,753,006.46/72,106.48
  6. Step 6: Final answer
    x = 54,984.70

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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.