Home / 61,898.13-85,438.86-39,542.13

Finding the Fourth Proportional to 61,898.13, 85,438.86 and 39,542.13

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Solution

The fourth proportional to 61,898.13, 85,438.86 and 39,542.13 is: 54,580.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,898.13 : 85,438.86 = 39,542.13 : x
  2. Step 2: Convert to fraction form
    61,898.13/85,438.86 = 39,542.13/x
  3. Step 3: Cross multiply
    61,898.13x = 85,438.86 × 39,542.13
  4. Step 4: Simplify right side
    61,898.13x = 3,378,434,509.17
  5. Step 5: Solve for x
    x = 3,378,434,509.17/61,898.13
  6. Step 6: Final answer
    x = 54,580.56

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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.