Home / 86,323.62-129,441.27-39,536.40

Finding the Fourth Proportional to 86,323.62, 129,441.27 and 39,536.40

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Solution

The fourth proportional to 86,323.62, 129,441.27 and 39,536.40 is: 59,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,323.62 : 129,441.27 = 39,536.40 : x
  2. Step 2: Convert to fraction form
    86,323.62/129,441.27 = 39,536.40/x
  3. Step 3: Cross multiply
    86,323.62x = 129,441.27 × 39,536.40
  4. Step 4: Simplify right side
    86,323.62x = 5,117,641,827.23
  5. Step 5: Solve for x
    x = 5,117,641,827.23/86,323.62
  6. Step 6: Final answer
    x = 59,284.37

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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.