Home / 72,167.52-99,587.14-39,900.26

Finding the Fourth Proportional to 72,167.52, 99,587.14 and 39,900.26

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Solution

The fourth proportional to 72,167.52, 99,587.14 and 39,900.26 is: 55,060.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.52 : 99,587.14 = 39,900.26 : x
  2. Step 2: Convert to fraction form
    72,167.52/99,587.14 = 39,900.26/x
  3. Step 3: Cross multiply
    72,167.52x = 99,587.14 × 39,900.26
  4. Step 4: Simplify right side
    72,167.52x = 3,973,552,554.42
  5. Step 5: Solve for x
    x = 3,973,552,554.42/72,167.52
  6. Step 6: Final answer
    x = 55,060.12

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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.