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Finding the Fourth Proportional to 60,103.20, 90,170.40 and 17,984.16

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Solution

The fourth proportional to 60,103.20, 90,170.40 and 17,984.16 is: 26,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,103.20 : 90,170.40 = 17,984.16 : x
  2. Step 2: Convert to fraction form
    60,103.20/90,170.40 = 17,984.16/x
  3. Step 3: Cross multiply
    60,103.20x = 90,170.40 × 17,984.16
  4. Step 4: Simplify right side
    60,103.20x = 1,621,638,900.86
  5. Step 5: Solve for x
    x = 1,621,638,900.86/60,103.20
  6. Step 6: Final answer
    x = 26,980.91

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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.