Home / 90,955.91-125,507.50-52,715.20

Finding the Fourth Proportional to 90,955.91, 125,507.50 and 52,715.20

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Solution

The fourth proportional to 90,955.91, 125,507.50 and 52,715.20 is: 72,740.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,955.91 : 125,507.50 = 52,715.20 : x
  2. Step 2: Convert to fraction form
    90,955.91/125,507.50 = 52,715.20/x
  3. Step 3: Cross multiply
    90,955.91x = 125,507.50 × 52,715.20
  4. Step 4: Simplify right side
    90,955.91x = 6,616,152,518.44
  5. Step 5: Solve for x
    x = 6,616,152,518.44/90,955.91
  6. Step 6: Final answer
    x = 72,740.21

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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.