Home / 80,319.45-120,430.53-35,937.93

Finding the Fourth Proportional to 80,319.45, 120,430.53 and 35,937.93

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Solution

The fourth proportional to 80,319.45, 120,430.53 and 35,937.93 is: 53,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,319.45 : 120,430.53 = 35,937.93 : x
  2. Step 2: Convert to fraction form
    80,319.45/120,430.53 = 35,937.93/x
  3. Step 3: Cross multiply
    80,319.45x = 120,430.53 × 35,937.93
  4. Step 4: Simplify right side
    80,319.45x = 4,328,023,957.00
  5. Step 5: Solve for x
    x = 4,328,023,957.00/80,319.45
  6. Step 6: Final answer
    x = 53,885.13

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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.