Home / 56,743.07-78,304.77-31,248.90

Finding the Fourth Proportional to 56,743.07, 78,304.77 and 31,248.90

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Solution

The fourth proportional to 56,743.07, 78,304.77 and 31,248.90 is: 43,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,743.07 : 78,304.77 = 31,248.90 : x
  2. Step 2: Convert to fraction form
    56,743.07/78,304.77 = 31,248.90/x
  3. Step 3: Cross multiply
    56,743.07x = 78,304.77 × 31,248.90
  4. Step 4: Simplify right side
    56,743.07x = 2,446,937,927.25
  5. Step 5: Solve for x
    x = 2,446,937,927.25/56,743.07
  6. Step 6: Final answer
    x = 43,123.12

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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.