Home / 91,443.06-126,181.80-53,195.40

Finding the Fourth Proportional to 91,443.06, 126,181.80 and 53,195.40

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Solution

The fourth proportional to 91,443.06, 126,181.80 and 53,195.40 is: 73,404.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,443.06 : 126,181.80 = 53,195.40 : x
  2. Step 2: Convert to fraction form
    91,443.06/126,181.80 = 53,195.40/x
  3. Step 3: Cross multiply
    91,443.06x = 126,181.80 × 53,195.40
  4. Step 4: Simplify right side
    91,443.06x = 6,712,291,323.72
  5. Step 5: Solve for x
    x = 6,712,291,323.72/91,443.06
  6. Step 6: Final answer
    x = 73,404.05

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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.