Home / 85,799.49-128,744.10-62,301.15

Finding the Fourth Proportional to 85,799.49, 128,744.10 and 62,301.15

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Solution

The fourth proportional to 85,799.49, 128,744.10 and 62,301.15 is: 93,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,799.49 : 128,744.10 = 62,301.15 : x
  2. Step 2: Convert to fraction form
    85,799.49/128,744.10 = 62,301.15/x
  3. Step 3: Cross multiply
    85,799.49x = 128,744.10 × 62,301.15
  4. Step 4: Simplify right side
    85,799.49x = 8,020,905,485.72
  5. Step 5: Solve for x
    x = 8,020,905,485.72/85,799.49
  6. Step 6: Final answer
    x = 93,484.30

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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.