Home / 82,746.40-124,119.60-43,315.60

Finding the Fourth Proportional to 82,746.40, 124,119.60 and 43,315.60

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Solution

The fourth proportional to 82,746.40, 124,119.60 and 43,315.60 is: 64,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,746.40 : 124,119.60 = 43,315.60 : x
  2. Step 2: Convert to fraction form
    82,746.40/124,119.60 = 43,315.60/x
  3. Step 3: Cross multiply
    82,746.40x = 124,119.60 × 43,315.60
  4. Step 4: Simplify right side
    82,746.40x = 5,376,314,945.76
  5. Step 5: Solve for x
    x = 5,376,314,945.76/82,746.40
  6. Step 6: Final answer
    x = 64,973.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.