Home / 87,312.78-120,396.27-58,969.26

Finding the Fourth Proportional to 87,312.78, 120,396.27 and 58,969.26

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Solution

The fourth proportional to 87,312.78, 120,396.27 and 58,969.26 is: 81,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,312.78 : 120,396.27 = 58,969.26 : x
  2. Step 2: Convert to fraction form
    87,312.78/120,396.27 = 58,969.26/x
  3. Step 3: Cross multiply
    87,312.78x = 120,396.27 × 58,969.26
  4. Step 4: Simplify right side
    87,312.78x = 7,099,678,948.66
  5. Step 5: Solve for x
    x = 7,099,678,948.66/87,312.78
  6. Step 6: Final answer
    x = 81,313.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.