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Finding the Fourth Proportional to 79,349.40, 119,024.10 and 68,981.40

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Solution

The fourth proportional to 79,349.40, 119,024.10 and 68,981.40 is: 103,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,349.40 : 119,024.10 = 68,981.40 : x
  2. Step 2: Convert to fraction form
    79,349.40/119,024.10 = 68,981.40/x
  3. Step 3: Cross multiply
    79,349.40x = 119,024.10 × 68,981.40
  4. Step 4: Simplify right side
    79,349.40x = 8,210,449,051.74
  5. Step 5: Solve for x
    x = 8,210,449,051.74/79,349.40
  6. Step 6: Final answer
    x = 103,472.10

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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.