Home / 91,407.26-126,144.06-64,597.08

Finding the Fourth Proportional to 91,407.26, 126,144.06 and 64,597.08

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Solution

The fourth proportional to 91,407.26, 126,144.06 and 64,597.08 is: 89,145.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,407.26 : 126,144.06 = 64,597.08 : x
  2. Step 2: Convert to fraction form
    91,407.26/126,144.06 = 64,597.08/x
  3. Step 3: Cross multiply
    91,407.26x = 126,144.06 × 64,597.08
  4. Step 4: Simplify right side
    91,407.26x = 8,148,537,935.34
  5. Step 5: Solve for x
    x = 8,148,537,935.34/91,407.26
  6. Step 6: Final answer
    x = 89,145.41

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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.