Home / 86,203.19-129,263.13-30,041.97

Finding the Fourth Proportional to 86,203.19, 129,263.13 and 30,041.97

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Solution

The fourth proportional to 86,203.19, 129,263.13 and 30,041.97 is: 45,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,203.19 : 129,263.13 = 30,041.97 : x
  2. Step 2: Convert to fraction form
    86,203.19/129,263.13 = 30,041.97/x
  3. Step 3: Cross multiply
    86,203.19x = 129,263.13 × 30,041.97
  4. Step 4: Simplify right side
    86,203.19x = 3,883,319,073.57
  5. Step 5: Solve for x
    x = 3,883,319,073.57/86,203.19
  6. Step 6: Final answer
    x = 45,048.44

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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.