Home / 72,104.48-99,506.19-39,841.18

Finding the Fourth Proportional to 72,104.48, 99,506.19 and 39,841.18

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Solution

The fourth proportional to 72,104.48, 99,506.19 and 39,841.18 is: 54,981.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,104.48 : 99,506.19 = 39,841.18 : x
  2. Step 2: Convert to fraction form
    72,104.48/99,506.19 = 39,841.18/x
  3. Step 3: Cross multiply
    72,104.48x = 99,506.19 × 39,841.18
  4. Step 4: Simplify right side
    72,104.48x = 3,964,443,703.44
  5. Step 5: Solve for x
    x = 3,964,443,703.44/72,104.48
  6. Step 6: Final answer
    x = 54,981.93

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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.