Home / 56,734.07-78,292.35-31,239.90

Finding the Fourth Proportional to 56,734.07, 78,292.35 and 31,239.90

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Solution

The fourth proportional to 56,734.07, 78,292.35 and 31,239.90 is: 43,110.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,734.07 : 78,292.35 = 31,239.90 : x
  2. Step 2: Convert to fraction form
    56,734.07/78,292.35 = 31,239.90/x
  3. Step 3: Cross multiply
    56,734.07x = 78,292.35 × 31,239.90
  4. Step 4: Simplify right side
    56,734.07x = 2,445,845,184.77
  5. Step 5: Solve for x
    x = 2,445,845,184.77/56,734.07
  6. Step 6: Final answer
    x = 43,110.70

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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.