Home / 86,205.08-129,307.80-23,875.76

Finding the Fourth Proportional to 86,205.08, 129,307.80 and 23,875.76

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Solution

The fourth proportional to 86,205.08, 129,307.80 and 23,875.76 is: 35,813.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,205.08 : 129,307.80 = 23,875.76 : x
  2. Step 2: Convert to fraction form
    86,205.08/129,307.80 = 23,875.76/x
  3. Step 3: Cross multiply
    86,205.08x = 129,307.80 × 23,875.76
  4. Step 4: Simplify right side
    86,205.08x = 3,087,321,998.93
  5. Step 5: Solve for x
    x = 3,087,321,998.93/86,205.08
  6. Step 6: Final answer
    x = 35,813.69

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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.