Home / 89,966.28-135,031.07-47,881.81

Finding the Fourth Proportional to 89,966.28, 135,031.07 and 47,881.81

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Solution

The fourth proportional to 89,966.28, 135,031.07 and 47,881.81 is: 71,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,966.28 : 135,031.07 = 47,881.81 : x
  2. Step 2: Convert to fraction form
    89,966.28/135,031.07 = 47,881.81/x
  3. Step 3: Cross multiply
    89,966.28x = 135,031.07 × 47,881.81
  4. Step 4: Simplify right side
    89,966.28x = 6,465,532,037.84
  5. Step 5: Solve for x
    x = 6,465,532,037.84/89,966.28
  6. Step 6: Final answer
    x = 71,866.17

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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.