Home / 81,196.20-112,050.36-45,386.10

Finding the Fourth Proportional to 81,196.20, 112,050.36 and 45,386.10

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Solution

The fourth proportional to 81,196.20, 112,050.36 and 45,386.10 is: 62,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,196.20 : 112,050.36 = 45,386.10 : x
  2. Step 2: Convert to fraction form
    81,196.20/112,050.36 = 45,386.10/x
  3. Step 3: Cross multiply
    81,196.20x = 112,050.36 × 45,386.10
  4. Step 4: Simplify right side
    81,196.20x = 5,085,528,844.00
  5. Step 5: Solve for x
    x = 5,085,528,844.00/81,196.20
  6. Step 6: Final answer
    x = 62,632.60

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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.