Home / 42,310.34-63,340.86-31,266.39

Finding the Fourth Proportional to 42,310.34, 63,340.86 and 31,266.39

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Solution

The fourth proportional to 42,310.34, 63,340.86 and 31,266.39 is: 46,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,310.34 : 63,340.86 = 31,266.39 : x
  2. Step 2: Convert to fraction form
    42,310.34/63,340.86 = 31,266.39/x
  3. Step 3: Cross multiply
    42,310.34x = 63,340.86 × 31,266.39
  4. Step 4: Simplify right side
    42,310.34x = 1,980,440,031.70
  5. Step 5: Solve for x
    x = 1,980,440,031.70/42,310.34
  6. Step 6: Final answer
    x = 46,807.48

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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.