Home / 40,702.46-61,062.45-12,621.95

Finding the Fourth Proportional to 40,702.46, 61,062.45 and 12,621.95

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Solution

The fourth proportional to 40,702.46, 61,062.45 and 12,621.95 is: 18,935.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,702.46 : 61,062.45 = 12,621.95 : x
  2. Step 2: Convert to fraction form
    40,702.46/61,062.45 = 12,621.95/x
  3. Step 3: Cross multiply
    40,702.46x = 61,062.45 × 12,621.95
  4. Step 4: Simplify right side
    40,702.46x = 770,726,885.47
  5. Step 5: Solve for x
    x = 770,726,885.47/40,702.46
  6. Step 6: Final answer
    x = 18,935.64

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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.