Home / 64,880.18-89,548.98-42,179.66

Finding the Fourth Proportional to 64,880.18, 89,548.98 and 42,179.66

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Solution

The fourth proportional to 64,880.18, 89,548.98 and 42,179.66 is: 58,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,880.18 : 89,548.98 = 42,179.66 : x
  2. Step 2: Convert to fraction form
    64,880.18/89,548.98 = 42,179.66/x
  3. Step 3: Cross multiply
    64,880.18x = 89,548.98 × 42,179.66
  4. Step 4: Simplify right side
    64,880.18x = 3,777,145,529.75
  5. Step 5: Solve for x
    x = 3,777,145,529.75/64,880.18
  6. Step 6: Final answer
    x = 58,217.25

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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.