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Finding the Fourth Proportional to 72,041.20, 107,924.10 and 38,750.20

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Solution

The fourth proportional to 72,041.20, 107,924.10 and 38,750.20 is: 58,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,041.20 : 107,924.10 = 38,750.20 : x
  2. Step 2: Convert to fraction form
    72,041.20/107,924.10 = 38,750.20/x
  3. Step 3: Cross multiply
    72,041.20x = 107,924.10 × 38,750.20
  4. Step 4: Simplify right side
    72,041.20x = 4,182,080,459.82
  5. Step 5: Solve for x
    x = 4,182,080,459.82/72,041.20
  6. Step 6: Final answer
    x = 58,051.23

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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.