Home / 84,516.79-126,588.31-57,799.46

Finding the Fourth Proportional to 84,516.79, 126,588.31 and 57,799.46

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Solution

The fourth proportional to 84,516.79, 126,588.31 and 57,799.46 is: 86,571.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,516.79 : 126,588.31 = 57,799.46 : x
  2. Step 2: Convert to fraction form
    84,516.79/126,588.31 = 57,799.46/x
  3. Step 3: Cross multiply
    84,516.79x = 126,588.31 × 57,799.46
  4. Step 4: Simplify right side
    84,516.79x = 7,316,735,960.31
  5. Step 5: Solve for x
    x = 7,316,735,960.31/84,516.79
  6. Step 6: Final answer
    x = 86,571.39

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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.