Home / 91,674.04-126,510.96-51,387.88

Finding the Fourth Proportional to 91,674.04, 126,510.96 and 51,387.88

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Solution

The fourth proportional to 91,674.04, 126,510.96 and 51,387.88 is: 70,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,674.04 : 126,510.96 = 51,387.88 : x
  2. Step 2: Convert to fraction form
    91,674.04/126,510.96 = 51,387.88/x
  3. Step 3: Cross multiply
    91,674.04x = 126,510.96 × 51,387.88
  4. Step 4: Simplify right side
    91,674.04x = 6,501,130,031.16
  5. Step 5: Solve for x
    x = 6,501,130,031.16/91,674.04
  6. Step 6: Final answer
    x = 70,915.71

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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.