Home / 74,717.60-103,108.88-40,726.40

Finding the Fourth Proportional to 74,717.60, 103,108.88 and 40,726.40

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Solution

The fourth proportional to 74,717.60, 103,108.88 and 40,726.40 is: 56,201.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,717.60 : 103,108.88 = 40,726.40 : x
  2. Step 2: Convert to fraction form
    74,717.60/103,108.88 = 40,726.40/x
  3. Step 3: Cross multiply
    74,717.60x = 103,108.88 × 40,726.40
  4. Step 4: Simplify right side
    74,717.60x = 4,199,253,490.43
  5. Step 5: Solve for x
    x = 4,199,253,490.43/74,717.60
  6. Step 6: Final answer
    x = 56,201.66

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1.5x scale

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.