Home / 71,335.48-107,002.96-21,415.36

Finding the Fourth Proportional to 71,335.48, 107,002.96 and 21,415.36

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Solution

The fourth proportional to 71,335.48, 107,002.96 and 21,415.36 is: 32,122.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,335.48 : 107,002.96 = 21,415.36 : x
  2. Step 2: Convert to fraction form
    71,335.48/107,002.96 = 21,415.36/x
  3. Step 3: Cross multiply
    71,335.48x = 107,002.96 × 21,415.36
  4. Step 4: Simplify right side
    71,335.48x = 2,291,506,909.47
  5. Step 5: Solve for x
    x = 2,291,506,909.47/71,335.48
  6. Step 6: Final answer
    x = 32,122.96

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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.