Home / 86,373.98-129,268.36-53,115.12

Finding the Fourth Proportional to 86,373.98, 129,268.36 and 53,115.12

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Solution

The fourth proportional to 86,373.98, 129,268.36 and 53,115.12 is: 79,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,373.98 : 129,268.36 = 53,115.12 : x
  2. Step 2: Convert to fraction form
    86,373.98/129,268.36 = 53,115.12/x
  3. Step 3: Cross multiply
    86,373.98x = 129,268.36 × 53,115.12
  4. Step 4: Simplify right side
    86,373.98x = 6,866,104,453.60
  5. Step 5: Solve for x
    x = 6,866,104,453.60/86,373.98
  6. Step 6: Final answer
    x = 79,492.74

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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.