Home / 42,762.33-64,157.31-20,572.74

Finding the Fourth Proportional to 42,762.33, 64,157.31 and 20,572.74

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Solution

The fourth proportional to 42,762.33, 64,157.31 and 20,572.74 is: 30,865.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,762.33 : 64,157.31 = 20,572.74 : x
  2. Step 2: Convert to fraction form
    42,762.33/64,157.31 = 20,572.74/x
  3. Step 3: Cross multiply
    42,762.33x = 64,157.31 × 20,572.74
  4. Step 4: Simplify right side
    42,762.33x = 1,319,891,657.73
  5. Step 5: Solve for x
    x = 1,319,891,657.73/42,762.33
  6. Step 6: Final answer
    x = 30,865.76

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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.