Home / 85,031.47-127,510.30-25,853.28

Finding the Fourth Proportional to 85,031.47, 127,510.30 and 25,853.28

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Solution

The fourth proportional to 85,031.47, 127,510.30 and 25,853.28 is: 38,768.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,031.47 : 127,510.30 = 25,853.28 : x
  2. Step 2: Convert to fraction form
    85,031.47/127,510.30 = 25,853.28/x
  3. Step 3: Cross multiply
    85,031.47x = 127,510.30 × 25,853.28
  4. Step 4: Simplify right side
    85,031.47x = 3,296,559,042.94
  5. Step 5: Solve for x
    x = 3,296,559,042.94/85,031.47
  6. Step 6: Final answer
    x = 38,768.69

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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.