Home / 77,213.13-106,549.18-43,215.90

Finding the Fourth Proportional to 77,213.13, 106,549.18 and 43,215.90

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Solution

The fourth proportional to 77,213.13, 106,549.18 and 43,215.90 is: 59,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,213.13 : 106,549.18 = 43,215.90 : x
  2. Step 2: Convert to fraction form
    77,213.13/106,549.18 = 43,215.90/x
  3. Step 3: Cross multiply
    77,213.13x = 106,549.18 × 43,215.90
  4. Step 4: Simplify right side
    77,213.13x = 4,604,618,707.96
  5. Step 5: Solve for x
    x = 4,604,618,707.96/77,213.13
  6. Step 6: Final answer
    x = 59,635.18

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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.