Home / 71,900.04-107,864.18-21,987.23

Finding the Fourth Proportional to 71,900.04, 107,864.18 and 21,987.23

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Solution

The fourth proportional to 71,900.04, 107,864.18 and 21,987.23 is: 32,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,900.04 : 107,864.18 = 21,987.23 : x
  2. Step 2: Convert to fraction form
    71,900.04/107,864.18 = 21,987.23/x
  3. Step 3: Cross multiply
    71,900.04x = 107,864.18 × 21,987.23
  4. Step 4: Simplify right side
    71,900.04x = 2,371,633,885.16
  5. Step 5: Solve for x
    x = 2,371,633,885.16/71,900.04
  6. Step 6: Final answer
    x = 32,985.15

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1.5x scale

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.