Home / 86,400.16-129,580.79-30,996.16

Finding the Fourth Proportional to 86,400.16, 129,580.79 and 30,996.16

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Solution

The fourth proportional to 86,400.16, 129,580.79 and 30,996.16 is: 46,487.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,400.16 : 129,580.79 = 30,996.16 : x
  2. Step 2: Convert to fraction form
    86,400.16/129,580.79 = 30,996.16/x
  3. Step 3: Cross multiply
    86,400.16x = 129,580.79 × 30,996.16
  4. Step 4: Simplify right side
    86,400.16x = 4,016,506,420.83
  5. Step 5: Solve for x
    x = 4,016,506,420.83/86,400.16
  6. Step 6: Final answer
    x = 46,487.26

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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.