Home / 51,082.65-70,482.61-30,939.17

Finding the Fourth Proportional to 51,082.65, 70,482.61 and 30,939.17

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Solution

The fourth proportional to 51,082.65, 70,482.61 and 30,939.17 is: 42,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,082.65 : 70,482.61 = 30,939.17 : x
  2. Step 2: Convert to fraction form
    51,082.65/70,482.61 = 30,939.17/x
  3. Step 3: Cross multiply
    51,082.65x = 70,482.61 × 30,939.17
  4. Step 4: Simplify right side
    51,082.65x = 2,180,672,965.06
  5. Step 5: Solve for x
    x = 2,180,672,965.06/51,082.65
  6. Step 6: Final answer
    x = 42,689.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.