Home / 89,971.05-124,021.13-64,506.17

Finding the Fourth Proportional to 89,971.05, 124,021.13 and 64,506.17

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Solution

The fourth proportional to 89,971.05, 124,021.13 and 64,506.17 is: 88,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,971.05 : 124,021.13 = 64,506.17 : x
  2. Step 2: Convert to fraction form
    89,971.05/124,021.13 = 64,506.17/x
  3. Step 3: Cross multiply
    89,971.05x = 124,021.13 × 64,506.17
  4. Step 4: Simplify right side
    89,971.05x = 8,000,128,082.89
  5. Step 5: Solve for x
    x = 8,000,128,082.89/89,971.05
  6. Step 6: Final answer
    x = 88,918.91

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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.