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Finding the Fourth Proportional to 79,444.58, 119,167.95 and 20,280.74

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Solution

The fourth proportional to 79,444.58, 119,167.95 and 20,280.74 is: 30,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,444.58 : 119,167.95 = 20,280.74 : x
  2. Step 2: Convert to fraction form
    79,444.58/119,167.95 = 20,280.74/x
  3. Step 3: Cross multiply
    79,444.58x = 119,167.95 × 20,280.74
  4. Step 4: Simplify right side
    79,444.58x = 2,416,814,210.28
  5. Step 5: Solve for x
    x = 2,416,814,210.28/79,444.58
  6. Step 6: Final answer
    x = 30,421.39

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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.