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Finding the Fourth Proportional to 60,085.78, 90,101.32 and 31,998.62

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Solution

The fourth proportional to 60,085.78, 90,101.32 and 31,998.62 is: 47,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,085.78 : 90,101.32 = 31,998.62 : x
  2. Step 2: Convert to fraction form
    60,085.78/90,101.32 = 31,998.62/x
  3. Step 3: Cross multiply
    60,085.78x = 90,101.32 × 31,998.62
  4. Step 4: Simplify right side
    60,085.78x = 2,883,117,900.18
  5. Step 5: Solve for x
    x = 2,883,117,900.18/60,085.78
  6. Step 6: Final answer
    x = 47,983.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.