Home / 86,468.80-129,394.32-53,196.16

Finding the Fourth Proportional to 86,468.80, 129,394.32 and 53,196.16

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Solution

The fourth proportional to 86,468.80, 129,394.32 and 53,196.16 is: 79,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,468.80 : 129,394.32 = 53,196.16 : x
  2. Step 2: Convert to fraction form
    86,468.80/129,394.32 = 53,196.16/x
  3. Step 3: Cross multiply
    86,468.80x = 129,394.32 × 53,196.16
  4. Step 4: Simplify right side
    86,468.80x = 6,883,280,949.81
  5. Step 5: Solve for x
    x = 6,883,280,949.81/86,468.80
  6. Step 6: Final answer
    x = 79,604.22

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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.