Home / 42,771.62-64,161.02-15,761.32

Finding the Fourth Proportional to 42,771.62, 64,161.02 and 15,761.32

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Solution

The fourth proportional to 42,771.62, 64,161.02 and 15,761.32 is: 23,643.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,771.62 : 64,161.02 = 15,761.32 : x
  2. Step 2: Convert to fraction form
    42,771.62/64,161.02 = 15,761.32/x
  3. Step 3: Cross multiply
    42,771.62x = 64,161.02 × 15,761.32
  4. Step 4: Simplify right side
    42,771.62x = 1,011,262,367.75
  5. Step 5: Solve for x
    x = 1,011,262,367.75/42,771.62
  6. Step 6: Final answer
    x = 23,643.30

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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.