Home / 74,781.70-103,201.05-42,956.98

Finding the Fourth Proportional to 74,781.70, 103,201.05 and 42,956.98

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Solution

The fourth proportional to 74,781.70, 103,201.05 and 42,956.98 is: 59,281.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,781.70 : 103,201.05 = 42,956.98 : x
  2. Step 2: Convert to fraction form
    74,781.70/103,201.05 = 42,956.98/x
  3. Step 3: Cross multiply
    74,781.70x = 103,201.05 × 42,956.98
  4. Step 4: Simplify right side
    74,781.70x = 4,433,205,440.83
  5. Step 5: Solve for x
    x = 4,433,205,440.83/74,781.70
  6. Step 6: Final answer
    x = 59,281.96

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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.