Home / 88,610.31-122,213.12-56,782.17

Finding the Fourth Proportional to 88,610.31, 122,213.12 and 56,782.17

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Solution

The fourth proportional to 88,610.31, 122,213.12 and 56,782.17 is: 78,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,610.31 : 122,213.12 = 56,782.17 : x
  2. Step 2: Convert to fraction form
    88,610.31/122,213.12 = 56,782.17/x
  3. Step 3: Cross multiply
    88,610.31x = 122,213.12 × 56,782.17
  4. Step 4: Simplify right side
    88,610.31x = 6,939,526,156.07
  5. Step 5: Solve for x
    x = 6,939,526,156.07/88,610.31
  6. Step 6: Final answer
    x = 78,315.11

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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.