Home / 56,862.15-78,473.21-31,368.57

Finding the Fourth Proportional to 56,862.15, 78,473.21 and 31,368.57

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Solution

The fourth proportional to 56,862.15, 78,473.21 and 31,368.57 is: 43,290.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,862.15 : 78,473.21 = 31,368.57 : x
  2. Step 2: Convert to fraction form
    56,862.15/78,473.21 = 31,368.57/x
  3. Step 3: Cross multiply
    56,862.15x = 78,473.21 × 31,368.57
  4. Step 4: Simplify right side
    56,862.15x = 2,461,591,929.89
  5. Step 5: Solve for x
    x = 2,461,591,929.89/56,862.15
  6. Step 6: Final answer
    x = 43,290.52

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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.