Home / 81,019.26-111,828.67-47,038.39

Finding the Fourth Proportional to 81,019.26, 111,828.67 and 47,038.39

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Solution

The fourth proportional to 81,019.26, 111,828.67 and 47,038.39 is: 64,925.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,019.26 : 111,828.67 = 47,038.39 : x
  2. Step 2: Convert to fraction form
    81,019.26/111,828.67 = 47,038.39/x
  3. Step 3: Cross multiply
    81,019.26x = 111,828.67 × 47,038.39
  4. Step 4: Simplify right side
    81,019.26x = 5,260,240,195.47
  5. Step 5: Solve for x
    x = 5,260,240,195.47/81,019.26
  6. Step 6: Final answer
    x = 64,925.80

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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.