Home / 74,422.48-102,702.28-40,887.76

Finding the Fourth Proportional to 74,422.48, 102,702.28 and 40,887.76

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Solution

The fourth proportional to 74,422.48, 102,702.28 and 40,887.76 is: 56,424.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,422.48 : 102,702.28 = 40,887.76 : x
  2. Step 2: Convert to fraction form
    74,422.48/102,702.28 = 40,887.76/x
  3. Step 3: Cross multiply
    74,422.48x = 102,702.28 × 40,887.76
  4. Step 4: Simplify right side
    74,422.48x = 4,199,266,176.09
  5. Step 5: Solve for x
    x = 4,199,266,176.09/74,422.48
  6. Step 6: Final answer
    x = 56,424.70

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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.