Home / 42,672.54-63,947.80-31,338.98

Finding the Fourth Proportional to 42,672.54, 63,947.80 and 31,338.98

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Solution

The fourth proportional to 42,672.54, 63,947.80 and 31,338.98 is: 46,963.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,672.54 : 63,947.80 = 31,338.98 : x
  2. Step 2: Convert to fraction form
    42,672.54/63,947.80 = 31,338.98/x
  3. Step 3: Cross multiply
    42,672.54x = 63,947.80 × 31,338.98
  4. Step 4: Simplify right side
    42,672.54x = 2,004,058,825.24
  5. Step 5: Solve for x
    x = 2,004,058,825.24/42,672.54
  6. Step 6: Final answer
    x = 46,963.66

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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.