Home / 72,681.12-109,031.04-22,763.52

Finding the Fourth Proportional to 72,681.12, 109,031.04 and 22,763.52

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Solution

The fourth proportional to 72,681.12, 109,031.04 and 22,763.52 is: 34,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,681.12 : 109,031.04 = 22,763.52 : x
  2. Step 2: Convert to fraction form
    72,681.12/109,031.04 = 22,763.52/x
  3. Step 3: Cross multiply
    72,681.12x = 109,031.04 × 22,763.52
  4. Step 4: Simplify right side
    72,681.12x = 2,481,930,259.66
  5. Step 5: Solve for x
    x = 2,481,930,259.66/72,681.12
  6. Step 6: Final answer
    x = 34,148.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.