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Finding the Fourth Proportional to 68,970.20, 103,036.01 and 43,808.76

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Solution

The fourth proportional to 68,970.20, 103,036.01 and 43,808.76 is: 65,446.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,970.20 : 103,036.01 = 43,808.76 : x
  2. Step 2: Convert to fraction form
    68,970.20/103,036.01 = 43,808.76/x
  3. Step 3: Cross multiply
    68,970.20x = 103,036.01 × 43,808.76
  4. Step 4: Simplify right side
    68,970.20x = 4,513,879,614.40
  5. Step 5: Solve for x
    x = 4,513,879,614.40/68,970.20
  6. Step 6: Final answer
    x = 65,446.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.