Home / 42,003.20-63,004.80-26,451.20

Finding the Fourth Proportional to 42,003.20, 63,004.80 and 26,451.20

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Solution

The fourth proportional to 42,003.20, 63,004.80 and 26,451.20 is: 39,676.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,003.20 : 63,004.80 = 26,451.20 : x
  2. Step 2: Convert to fraction form
    42,003.20/63,004.80 = 26,451.20/x
  3. Step 3: Cross multiply
    42,003.20x = 63,004.80 × 26,451.20
  4. Step 4: Simplify right side
    42,003.20x = 1,666,552,565.76
  5. Step 5: Solve for x
    x = 1,666,552,565.76/42,003.20
  6. Step 6: Final answer
    x = 39,676.80

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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.