Home / 63,045.15-87,017.13-39,189.84

Finding the Fourth Proportional to 63,045.15, 87,017.13 and 39,189.84

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Solution

The fourth proportional to 63,045.15, 87,017.13 and 39,189.84 is: 54,091.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,045.15 : 87,017.13 = 39,189.84 : x
  2. Step 2: Convert to fraction form
    63,045.15/87,017.13 = 39,189.84/x
  3. Step 3: Cross multiply
    63,045.15x = 87,017.13 × 39,189.84
  4. Step 4: Simplify right side
    63,045.15x = 3,410,187,401.96
  5. Step 5: Solve for x
    x = 3,410,187,401.96/63,045.15
  6. Step 6: Final answer
    x = 54,091.19

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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.