Home / 59,784.28-81,904.82-57,542.20

Finding the Fourth Proportional to 59,784.28, 81,904.82 and 57,542.20

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Solution

The fourth proportional to 59,784.28, 81,904.82 and 57,542.20 is: 78,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,784.28 : 81,904.82 = 57,542.20 : x
  2. Step 2: Convert to fraction form
    59,784.28/81,904.82 = 57,542.20/x
  3. Step 3: Cross multiply
    59,784.28x = 81,904.82 × 57,542.20
  4. Step 4: Simplify right side
    59,784.28x = 4,712,983,533.40
  5. Step 5: Solve for x
    x = 4,712,983,533.40/59,784.28
  6. Step 6: Final answer
    x = 78,833.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.