Home / 90,570.46-124,984.80-54,292.40

Finding the Fourth Proportional to 90,570.46, 124,984.80 and 54,292.40

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Solution

The fourth proportional to 90,570.46, 124,984.80 and 54,292.40 is: 74,922.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,570.46 : 124,984.80 = 54,292.40 : x
  2. Step 2: Convert to fraction form
    90,570.46/124,984.80 = 54,292.40/x
  3. Step 3: Cross multiply
    90,570.46x = 124,984.80 × 54,292.40
  4. Step 4: Simplify right side
    90,570.46x = 6,785,724,755.52
  5. Step 5: Solve for x
    x = 6,785,724,755.52/90,570.46
  6. Step 6: Final answer
    x = 74,922.05

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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.