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Finding the Fourth Proportional to 88,710.16, 122,212.06 and 61,804

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Solution

The fourth proportional to 88,710.16, 122,212.06 and 61,804 is: 85,144.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,710.16 : 122,212.06 = 61,804 : x
  2. Step 2: Convert to fraction form
    88,710.16/122,212.06 = 61,804/x
  3. Step 3: Cross multiply
    88,710.16x = 122,212.06 × 61,804
  4. Step 4: Simplify right side
    88,710.16x = 7,553,194,156.24
  5. Step 5: Solve for x
    x = 7,553,194,156.24/88,710.16
  6. Step 6: Final answer
    x = 85,144.63

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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.