Home / 81,074.40-111,862.80-47,533.92

Finding the Fourth Proportional to 81,074.40, 111,862.80 and 47,533.92

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Solution

The fourth proportional to 81,074.40, 111,862.80 and 47,533.92 is: 65,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.40 : 111,862.80 = 47,533.92 : x
  2. Step 2: Convert to fraction form
    81,074.40/111,862.80 = 47,533.92/x
  3. Step 3: Cross multiply
    81,074.40x = 111,862.80 × 47,533.92
  4. Step 4: Simplify right side
    81,074.40x = 5,317,277,386.18
  5. Step 5: Solve for x
    x = 5,317,277,386.18/81,074.40
  6. Step 6: Final answer
    x = 65,585.16

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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.