Home / 71,639.56-98,855.06-41,420.20

Finding the Fourth Proportional to 71,639.56, 98,855.06 and 41,420.20

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Solution

The fourth proportional to 71,639.56, 98,855.06 and 41,420.20 is: 57,155.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,639.56 : 98,855.06 = 41,420.20 : x
  2. Step 2: Convert to fraction form
    71,639.56/98,855.06 = 41,420.20/x
  3. Step 3: Cross multiply
    71,639.56x = 98,855.06 × 41,420.20
  4. Step 4: Simplify right side
    71,639.56x = 4,094,596,356.21
  5. Step 5: Solve for x
    x = 4,094,596,356.21/71,639.56
  6. Step 6: Final answer
    x = 57,155.52

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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.