Home / 89,461.20-123,421.03-57,648.63

Finding the Fourth Proportional to 89,461.20, 123,421.03 and 57,648.63

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Solution

The fourth proportional to 89,461.20, 123,421.03 and 57,648.63 is: 79,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,461.20 : 123,421.03 = 57,648.63 : x
  2. Step 2: Convert to fraction form
    89,461.20/123,421.03 = 57,648.63/x
  3. Step 3: Cross multiply
    89,461.20x = 123,421.03 × 57,648.63
  4. Step 4: Simplify right side
    89,461.20x = 7,115,053,292.69
  5. Step 5: Solve for x
    x = 7,115,053,292.69/89,461.20
  6. Step 6: Final answer
    x = 79,532.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.