Home / 90,951.10-125,512.80-52,718.16

Finding the Fourth Proportional to 90,951.10, 125,512.80 and 52,718.16

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Solution

The fourth proportional to 90,951.10, 125,512.80 and 52,718.16 is: 72,751.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,951.10 : 125,512.80 = 52,718.16 : x
  2. Step 2: Convert to fraction form
    90,951.10/125,512.80 = 52,718.16/x
  3. Step 3: Cross multiply
    90,951.10x = 125,512.80 × 52,718.16
  4. Step 4: Simplify right side
    90,951.10x = 6,616,803,872.45
  5. Step 5: Solve for x
    x = 6,616,803,872.45/90,951.10
  6. Step 6: Final answer
    x = 72,751.22

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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.