Home / 84,686.68-127,030.07-21,511.54

Finding the Fourth Proportional to 84,686.68, 127,030.07 and 21,511.54

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Solution

The fourth proportional to 84,686.68, 127,030.07 and 21,511.54 is: 32,267.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,686.68 : 127,030.07 = 21,511.54 : x
  2. Step 2: Convert to fraction form
    84,686.68/127,030.07 = 21,511.54/x
  3. Step 3: Cross multiply
    84,686.68x = 127,030.07 × 21,511.54
  4. Step 4: Simplify right side
    84,686.68x = 2,732,612,432.01
  5. Step 5: Solve for x
    x = 2,732,612,432.01/84,686.68
  6. Step 6: Final answer
    x = 32,267.32

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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.