Home / 71,739.59-98,941.67-63,679.13

Finding the Fourth Proportional to 71,739.59, 98,941.67 and 63,679.13

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Solution

The fourth proportional to 71,739.59, 98,941.67 and 63,679.13 is: 87,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,739.59 : 98,941.67 = 63,679.13 : x
  2. Step 2: Convert to fraction form
    71,739.59/98,941.67 = 63,679.13/x
  3. Step 3: Cross multiply
    71,739.59x = 98,941.67 × 63,679.13
  4. Step 4: Simplify right side
    71,739.59x = 6,300,519,130.84
  5. Step 5: Solve for x
    x = 6,300,519,130.84/71,739.59
  6. Step 6: Final answer
    x = 87,824.86

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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.