Home / 42,313.76-63,421.29-31,116.62

Finding the Fourth Proportional to 42,313.76, 63,421.29 and 31,116.62

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Solution

The fourth proportional to 42,313.76, 63,421.29 and 31,116.62 is: 46,638.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,313.76 : 63,421.29 = 31,116.62 : x
  2. Step 2: Convert to fraction form
    42,313.76/63,421.29 = 31,116.62/x
  3. Step 3: Cross multiply
    42,313.76x = 63,421.29 × 31,116.62
  4. Step 4: Simplify right side
    42,313.76x = 1,973,456,339.39
  5. Step 5: Solve for x
    x = 1,973,456,339.39/42,313.76
  6. Step 6: Final answer
    x = 46,638.64

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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.