Home / 99,530.71-137,365.92-58,706.39

Finding the Fourth Proportional to 99,530.71, 137,365.92 and 58,706.39

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Solution

The fourth proportional to 99,530.71, 137,365.92 and 58,706.39 is: 81,022.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,530.71 : 137,365.92 = 58,706.39 : x
  2. Step 2: Convert to fraction form
    99,530.71/137,365.92 = 58,706.39/x
  3. Step 3: Cross multiply
    99,530.71x = 137,365.92 × 58,706.39
  4. Step 4: Simplify right side
    99,530.71x = 8,064,257,615.64
  5. Step 5: Solve for x
    x = 8,064,257,615.64/99,530.71
  6. Step 6: Final answer
    x = 81,022.81

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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.