Home / 91,668.48-126,510.24-51,381.60

Finding the Fourth Proportional to 91,668.48, 126,510.24 and 51,381.60

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Solution

The fourth proportional to 91,668.48, 126,510.24 and 51,381.60 is: 70,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,668.48 : 126,510.24 = 51,381.60 : x
  2. Step 2: Convert to fraction form
    91,668.48/126,510.24 = 51,381.60/x
  3. Step 3: Cross multiply
    91,668.48x = 126,510.24 × 51,381.60
  4. Step 4: Simplify right side
    91,668.48x = 6,500,298,547.58
  5. Step 5: Solve for x
    x = 6,500,298,547.58/91,668.48
  6. Step 6: Final answer
    x = 70,910.95

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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.