Home / 74,785.83-103,200.39-42,954.74

Finding the Fourth Proportional to 74,785.83, 103,200.39 and 42,954.74

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Solution

The fourth proportional to 74,785.83, 103,200.39 and 42,954.74 is: 59,275.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.83 : 103,200.39 = 42,954.74 : x
  2. Step 2: Convert to fraction form
    74,785.83/103,200.39 = 42,954.74/x
  3. Step 3: Cross multiply
    74,785.83x = 103,200.39 × 42,954.74
  4. Step 4: Simplify right side
    74,785.83x = 4,432,945,404.35
  5. Step 5: Solve for x
    x = 4,432,945,404.35/74,785.83
  6. Step 6: Final answer
    x = 59,275.21

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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.