Home / 86,365.12-129,528.24-56,369.92

Finding the Fourth Proportional to 86,365.12, 129,528.24 and 56,369.92

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Solution

The fourth proportional to 86,365.12, 129,528.24 and 56,369.92 is: 84,542.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,365.12 : 129,528.24 = 56,369.92 : x
  2. Step 2: Convert to fraction form
    86,365.12/129,528.24 = 56,369.92/x
  3. Step 3: Cross multiply
    86,365.12x = 129,528.24 × 56,369.92
  4. Step 4: Simplify right side
    86,365.12x = 7,301,496,526.54
  5. Step 5: Solve for x
    x = 7,301,496,526.54/86,365.12
  6. Step 6: Final answer
    x = 84,542.19

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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.