Home / 56,747.52-78,310.80-31,597.20

Finding the Fourth Proportional to 56,747.52, 78,310.80 and 31,597.20

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Solution

The fourth proportional to 56,747.52, 78,310.80 and 31,597.20 is: 43,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,747.52 : 78,310.80 = 31,597.20 : x
  2. Step 2: Convert to fraction form
    56,747.52/78,310.80 = 31,597.20/x
  3. Step 3: Cross multiply
    56,747.52x = 78,310.80 × 31,597.20
  4. Step 4: Simplify right side
    56,747.52x = 2,474,402,009.76
  5. Step 5: Solve for x
    x = 2,474,402,009.76/56,747.52
  6. Step 6: Final answer
    x = 43,603.70

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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.