Home / 69,621.84-96,082.89-39,407.06

Finding the Fourth Proportional to 69,621.84, 96,082.89 and 39,407.06

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Solution

The fourth proportional to 69,621.84, 96,082.89 and 39,407.06 is: 54,384.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,621.84 : 96,082.89 = 39,407.06 : x
  2. Step 2: Convert to fraction form
    69,621.84/96,082.89 = 39,407.06/x
  3. Step 3: Cross multiply
    69,621.84x = 96,082.89 × 39,407.06
  4. Step 4: Simplify right side
    69,621.84x = 3,786,343,730.79
  5. Step 5: Solve for x
    x = 3,786,343,730.79/69,621.84
  6. Step 6: Final answer
    x = 54,384.42

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1.5x scale

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.