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Finding the Fourth Proportional to 60,346.32, 90,498.97 and 20,894.20

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Solution

The fourth proportional to 60,346.32, 90,498.97 and 20,894.20 is: 31,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,346.32 : 90,498.97 = 20,894.20 : x
  2. Step 2: Convert to fraction form
    60,346.32/90,498.97 = 20,894.20/x
  3. Step 3: Cross multiply
    60,346.32x = 90,498.97 × 20,894.20
  4. Step 4: Simplify right side
    60,346.32x = 1,890,903,887.90
  5. Step 5: Solve for x
    x = 1,890,903,887.90/60,346.32
  6. Step 6: Final answer
    x = 31,334.21

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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.