Home / 64,895.50-89,474.65-54,155.85

Finding the Fourth Proportional to 64,895.50, 89,474.65 and 54,155.85

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Solution

The fourth proportional to 64,895.50, 89,474.65 and 54,155.85 is: 74,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,895.50 : 89,474.65 = 54,155.85 : x
  2. Step 2: Convert to fraction form
    64,895.50/89,474.65 = 54,155.85/x
  3. Step 3: Cross multiply
    64,895.50x = 89,474.65 × 54,155.85
  4. Step 4: Simplify right side
    64,895.50x = 4,845,575,724.20
  5. Step 5: Solve for x
    x = 4,845,575,724.20/64,895.50
  6. Step 6: Final answer
    x = 74,667.36

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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.