Home / 91,722.14-126,405.16-71,547.06

Finding the Fourth Proportional to 91,722.14, 126,405.16 and 71,547.06

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Solution

The fourth proportional to 91,722.14, 126,405.16 and 71,547.06 is: 98,601.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,722.14 : 126,405.16 = 71,547.06 : x
  2. Step 2: Convert to fraction form
    91,722.14/126,405.16 = 71,547.06/x
  3. Step 3: Cross multiply
    91,722.14x = 126,405.16 × 71,547.06
  4. Step 4: Simplify right side
    91,722.14x = 9,043,917,861.98
  5. Step 5: Solve for x
    x = 9,043,917,861.98/91,722.14
  6. Step 6: Final answer
    x = 98,601.25

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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.