Home / 86,410.05-129,307.11-59,761.44

Finding the Fourth Proportional to 86,410.05, 129,307.11 and 59,761.44

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Solution

The fourth proportional to 86,410.05, 129,307.11 and 59,761.44 is: 89,429.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,410.05 : 129,307.11 = 59,761.44 : x
  2. Step 2: Convert to fraction form
    86,410.05/129,307.11 = 59,761.44/x
  3. Step 3: Cross multiply
    86,410.05x = 129,307.11 × 59,761.44
  4. Step 4: Simplify right side
    86,410.05x = 7,727,579,095.84
  5. Step 5: Solve for x
    x = 7,727,579,095.84/86,410.05
  6. Step 6: Final answer
    x = 89,429.17

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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.