Home / 74,733.91-103,074.46-47,878.90

Finding the Fourth Proportional to 74,733.91, 103,074.46 and 47,878.90

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Solution

The fourth proportional to 74,733.91, 103,074.46 and 47,878.90 is: 66,035.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,733.91 : 103,074.46 = 47,878.90 : x
  2. Step 2: Convert to fraction form
    74,733.91/103,074.46 = 47,878.90/x
  3. Step 3: Cross multiply
    74,733.91x = 103,074.46 × 47,878.90
  4. Step 4: Simplify right side
    74,733.91x = 4,935,091,385.51
  5. Step 5: Solve for x
    x = 4,935,091,385.51/74,733.91
  6. Step 6: Final answer
    x = 66,035.51

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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.