Home / 71,145.03-98,170.18-40,918.87

Finding the Fourth Proportional to 71,145.03, 98,170.18 and 40,918.87

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Solution

The fourth proportional to 71,145.03, 98,170.18 and 40,918.87 is: 56,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,145.03 : 98,170.18 = 40,918.87 : x
  2. Step 2: Convert to fraction form
    71,145.03/98,170.18 = 40,918.87/x
  3. Step 3: Cross multiply
    71,145.03x = 98,170.18 × 40,918.87
  4. Step 4: Simplify right side
    71,145.03x = 4,017,012,853.71
  5. Step 5: Solve for x
    x = 4,017,012,853.71/71,145.03
  6. Step 6: Final answer
    x = 56,462.31

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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.