Home / 285,048.15-427,586.01-74,686.29

Finding the Fourth Proportional to 285,048.15, 427,586.01 and 74,686.29

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Solution

The fourth proportional to 285,048.15, 427,586.01 and 74,686.29 is: 112,033.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,048.15 : 427,586.01 = 74,686.29 : x
  2. Step 2: Convert to fraction form
    285,048.15/427,586.01 = 74,686.29/x
  3. Step 3: Cross multiply
    285,048.15x = 427,586.01 × 74,686.29
  4. Step 4: Simplify right side
    285,048.15x = 31,934,812,742.80
  5. Step 5: Solve for x
    x = 31,934,812,742.80/285,048.15
  6. Step 6: Final answer
    x = 112,033.05

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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.