Home / 53,977.10-80,965.65-42,701.90

Finding the Fourth Proportional to 53,977.10, 80,965.65 and 42,701.90

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Solution

The fourth proportional to 53,977.10, 80,965.65 and 42,701.90 is: 64,052.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,977.10 : 80,965.65 = 42,701.90 : x
  2. Step 2: Convert to fraction form
    53,977.10/80,965.65 = 42,701.90/x
  3. Step 3: Cross multiply
    53,977.10x = 80,965.65 × 42,701.90
  4. Step 4: Simplify right side
    53,977.10x = 3,457,387,089.74
  5. Step 5: Solve for x
    x = 3,457,387,089.74/53,977.10
  6. Step 6: Final answer
    x = 64,052.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.