Home / 60,001.20-90,001.80-28,897.20

Finding the Fourth Proportional to 60,001.20, 90,001.80 and 28,897.20

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Solution

The fourth proportional to 60,001.20, 90,001.80 and 28,897.20 is: 43,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,001.20 : 90,001.80 = 28,897.20 : x
  2. Step 2: Convert to fraction form
    60,001.20/90,001.80 = 28,897.20/x
  3. Step 3: Cross multiply
    60,001.20x = 90,001.80 × 28,897.20
  4. Step 4: Simplify right side
    60,001.20x = 2,600,800,014.96
  5. Step 5: Solve for x
    x = 2,600,800,014.96/60,001.20
  6. Step 6: Final answer
    x = 43,345.80

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Similar ratio
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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.