Home / 64,434.49-88,889.20-41,780.81

Finding the Fourth Proportional to 64,434.49, 88,889.20 and 41,780.81

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Solution

The fourth proportional to 64,434.49, 88,889.20 and 41,780.81 is: 57,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,434.49 : 88,889.20 = 41,780.81 : x
  2. Step 2: Convert to fraction form
    64,434.49/88,889.20 = 41,780.81/x
  3. Step 3: Cross multiply
    64,434.49x = 88,889.20 × 41,780.81
  4. Step 4: Simplify right side
    64,434.49x = 3,713,862,894.02
  5. Step 5: Solve for x
    x = 3,713,862,894.02/64,434.49
  6. Step 6: Final answer
    x = 57,637.81

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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.