Home / 56,851.83-78,455.70-31,702.95

Finding the Fourth Proportional to 56,851.83, 78,455.70 and 31,702.95

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Solution

The fourth proportional to 56,851.83, 78,455.70 and 31,702.95 is: 43,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,851.83 : 78,455.70 = 31,702.95 : x
  2. Step 2: Convert to fraction form
    56,851.83/78,455.70 = 31,702.95/x
  3. Step 3: Cross multiply
    56,851.83x = 78,455.70 × 31,702.95
  4. Step 4: Simplify right side
    56,851.83x = 2,487,277,134.32
  5. Step 5: Solve for x
    x = 2,487,277,134.32/56,851.83
  6. Step 6: Final answer
    x = 43,750.17

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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.