Home / 86,493.34-129,888.24-53,409.16

Finding the Fourth Proportional to 86,493.34, 129,888.24 and 53,409.16

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Solution

The fourth proportional to 86,493.34, 129,888.24 and 53,409.16 is: 80,205.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,493.34 : 129,888.24 = 53,409.16 : x
  2. Step 2: Convert to fraction form
    86,493.34/129,888.24 = 53,409.16/x
  3. Step 3: Cross multiply
    86,493.34x = 129,888.24 × 53,409.16
  4. Step 4: Simplify right side
    86,493.34x = 6,937,221,792.28
  5. Step 5: Solve for x
    x = 6,937,221,792.28/86,493.34
  6. Step 6: Final answer
    x = 80,205.27

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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.