Home / 68,510.31-94,543.52-40,210.53

Finding the Fourth Proportional to 68,510.31, 94,543.52 and 40,210.53

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Solution

The fourth proportional to 68,510.31, 94,543.52 and 40,210.53 is: 55,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,510.31 : 94,543.52 = 40,210.53 : x
  2. Step 2: Convert to fraction form
    68,510.31/94,543.52 = 40,210.53/x
  3. Step 3: Cross multiply
    68,510.31x = 94,543.52 × 40,210.53
  4. Step 4: Simplify right side
    68,510.31x = 3,801,644,846.21
  5. Step 5: Solve for x
    x = 3,801,644,846.21/68,510.31
  6. Step 6: Final answer
    x = 55,490.11

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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.