Home / 67,688.08-101,555.68-30,244.56

Finding the Fourth Proportional to 67,688.08, 101,555.68 and 30,244.56

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Solution

The fourth proportional to 67,688.08, 101,555.68 and 30,244.56 is: 45,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,688.08 : 101,555.68 = 30,244.56 : x
  2. Step 2: Convert to fraction form
    67,688.08/101,555.68 = 30,244.56/x
  3. Step 3: Cross multiply
    67,688.08x = 101,555.68 × 30,244.56
  4. Step 4: Simplify right side
    67,688.08x = 3,071,506,857.10
  5. Step 5: Solve for x
    x = 3,071,506,857.10/67,688.08
  6. Step 6: Final answer
    x = 45,377.37

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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.