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Finding the Fourth Proportional to 88,807.84, 122,434.72 and 69,708

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Solution

The fourth proportional to 88,807.84, 122,434.72 and 69,708 is: 96,102.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,807.84 : 122,434.72 = 69,708 : x
  2. Step 2: Convert to fraction form
    88,807.84/122,434.72 = 69,708/x
  3. Step 3: Cross multiply
    88,807.84x = 122,434.72 × 69,708
  4. Step 4: Simplify right side
    88,807.84x = 8,534,679,461.76
  5. Step 5: Solve for x
    x = 8,534,679,461.76/88,807.84
  6. Step 6: Final answer
    x = 96,102.77

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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.