Home / 84,875.28-127,313.28-28,715.84

Finding the Fourth Proportional to 84,875.28, 127,313.28 and 28,715.84

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Solution

The fourth proportional to 84,875.28, 127,313.28 and 28,715.84 is: 43,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,875.28 : 127,313.28 = 28,715.84 : x
  2. Step 2: Convert to fraction form
    84,875.28/127,313.28 = 28,715.84/x
  3. Step 3: Cross multiply
    84,875.28x = 127,313.28 × 28,715.84
  4. Step 4: Simplify right side
    84,875.28x = 3,655,907,778.36
  5. Step 5: Solve for x
    x = 3,655,907,778.36/84,875.28
  6. Step 6: Final answer
    x = 43,073.88

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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.