Home / 84,686.05-127,029.13-21,510.91

Finding the Fourth Proportional to 84,686.05, 127,029.13 and 21,510.91

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Solution

The fourth proportional to 84,686.05, 127,029.13 and 21,510.91 is: 32,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,686.05 : 127,029.13 = 21,510.91 : x
  2. Step 2: Convert to fraction form
    84,686.05/127,029.13 = 21,510.91/x
  3. Step 3: Cross multiply
    84,686.05x = 127,029.13 × 21,510.91
  4. Step 4: Simplify right side
    84,686.05x = 2,732,512,182.81
  5. Step 5: Solve for x
    x = 2,732,512,182.81/84,686.05
  6. Step 6: Final answer
    x = 32,266.38

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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.