Home / 79,829.20-119,743.80-60,000.40

Finding the Fourth Proportional to 79,829.20, 119,743.80 and 60,000.40

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Solution

The fourth proportional to 79,829.20, 119,743.80 and 60,000.40 is: 90,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,829.20 : 119,743.80 = 60,000.40 : x
  2. Step 2: Convert to fraction form
    79,829.20/119,743.80 = 60,000.40/x
  3. Step 3: Cross multiply
    79,829.20x = 119,743.80 × 60,000.40
  4. Step 4: Simplify right side
    79,829.20x = 7,184,675,897.52
  5. Step 5: Solve for x
    x = 7,184,675,897.52/79,829.20
  6. Step 6: Final answer
    x = 90,000.60

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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.