Home / 86,346.80-129,549.61-52,680.22

Finding the Fourth Proportional to 86,346.80, 129,549.61 and 52,680.22

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Solution

The fourth proportional to 86,346.80, 129,549.61 and 52,680.22 is: 79,038.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,346.80 : 129,549.61 = 52,680.22 : x
  2. Step 2: Convert to fraction form
    86,346.80/129,549.61 = 52,680.22/x
  3. Step 3: Cross multiply
    86,346.80x = 129,549.61 × 52,680.22
  4. Step 4: Simplify right side
    86,346.80x = 6,824,701,879.87
  5. Step 5: Solve for x
    x = 6,824,701,879.87/86,346.80
  6. Step 6: Final answer
    x = 79,038.27

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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.