Home / 85,106.68-127,678.98-25,946.92

Finding the Fourth Proportional to 85,106.68, 127,678.98 and 25,946.92

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Solution

The fourth proportional to 85,106.68, 127,678.98 and 25,946.92 is: 38,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,106.68 : 127,678.98 = 25,946.92 : x
  2. Step 2: Convert to fraction form
    85,106.68/127,678.98 = 25,946.92/x
  3. Step 3: Cross multiply
    85,106.68x = 127,678.98 × 25,946.92
  4. Step 4: Simplify right side
    85,106.68x = 3,312,876,279.74
  5. Step 5: Solve for x
    x = 3,312,876,279.74/85,106.68
  6. Step 6: Final answer
    x = 38,926.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.