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Finding the Fourth Proportional to 88,710.72, 122,402.51 and 50,977.68

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Solution

The fourth proportional to 88,710.72, 122,402.51 and 50,977.68 is: 70,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,710.72 : 122,402.51 = 50,977.68 : x
  2. Step 2: Convert to fraction form
    88,710.72/122,402.51 = 50,977.68/x
  3. Step 3: Cross multiply
    88,710.72x = 122,402.51 × 50,977.68
  4. Step 4: Simplify right side
    88,710.72x = 6,239,796,113.42
  5. Step 5: Solve for x
    x = 6,239,796,113.42/88,710.72
  6. Step 6: Final answer
    x = 70,338.69

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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.