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Finding the Fourth Proportional to 64,138.49, 88,510.51 and 35,458.89

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Solution

The fourth proportional to 64,138.49, 88,510.51 and 35,458.89 is: 48,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.49 : 88,510.51 = 35,458.89 : x
  2. Step 2: Convert to fraction form
    64,138.49/88,510.51 = 35,458.89/x
  3. Step 3: Cross multiply
    64,138.49x = 88,510.51 × 35,458.89
  4. Step 4: Simplify right side
    64,138.49x = 3,138,484,437.93
  5. Step 5: Solve for x
    x = 3,138,484,437.93/64,138.49
  6. Step 6: Final answer
    x = 48,932.93

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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.