Home / 92,962.16-128,288.60-50,520.72

Finding the Fourth Proportional to 92,962.16, 128,288.60 and 50,520.72

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Solution

The fourth proportional to 92,962.16, 128,288.60 and 50,520.72 is: 69,719.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,962.16 : 128,288.60 = 50,520.72 : x
  2. Step 2: Convert to fraction form
    92,962.16/128,288.60 = 50,520.72/x
  3. Step 3: Cross multiply
    92,962.16x = 128,288.60 × 50,520.72
  4. Step 4: Simplify right side
    92,962.16x = 6,481,232,439.79
  5. Step 5: Solve for x
    x = 6,481,232,439.79/92,962.16
  6. Step 6: Final answer
    x = 69,719.04

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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.