Home / 64,908.31-89,502.85-42,205.19

Finding the Fourth Proportional to 64,908.31, 89,502.85 and 42,205.19

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Solution

The fourth proportional to 64,908.31, 89,502.85 and 42,205.19 is: 58,197.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,908.31 : 89,502.85 = 42,205.19 : x
  2. Step 2: Convert to fraction form
    64,908.31/89,502.85 = 42,205.19/x
  3. Step 3: Cross multiply
    64,908.31x = 89,502.85 × 42,205.19
  4. Step 4: Simplify right side
    64,908.31x = 3,777,484,578.77
  5. Step 5: Solve for x
    x = 3,777,484,578.77/64,908.31
  6. Step 6: Final answer
    x = 58,197.25

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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.