Home / 53,869.13-74,319.21-31,199.86

Finding the Fourth Proportional to 53,869.13, 74,319.21 and 31,199.86

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Solution

The fourth proportional to 53,869.13, 74,319.21 and 31,199.86 is: 43,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,869.13 : 74,319.21 = 31,199.86 : x
  2. Step 2: Convert to fraction form
    53,869.13/74,319.21 = 31,199.86/x
  3. Step 3: Cross multiply
    53,869.13x = 74,319.21 × 31,199.86
  4. Step 4: Simplify right side
    53,869.13x = 2,318,748,947.31
  5. Step 5: Solve for x
    x = 2,318,748,947.31/53,869.13
  6. Step 6: Final answer
    x = 43,044.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.