Home / 83,652.53-115,438.55-47,840.40

Finding the Fourth Proportional to 83,652.53, 115,438.55 and 47,840.40

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Solution

The fourth proportional to 83,652.53, 115,438.55 and 47,840.40 is: 66,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,652.53 : 115,438.55 = 47,840.40 : x
  2. Step 2: Convert to fraction form
    83,652.53/115,438.55 = 47,840.40/x
  3. Step 3: Cross multiply
    83,652.53x = 115,438.55 × 47,840.40
  4. Step 4: Simplify right side
    83,652.53x = 5,522,626,168.22
  5. Step 5: Solve for x
    x = 5,522,626,168.22/83,652.53
  6. Step 6: Final answer
    x = 66,018.64

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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.