Home / 74,532.75-102,853.56-42,720.40

Finding the Fourth Proportional to 74,532.75, 102,853.56 and 42,720.40

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Solution

The fourth proportional to 74,532.75, 102,853.56 and 42,720.40 is: 58,953.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,532.75 : 102,853.56 = 42,720.40 : x
  2. Step 2: Convert to fraction form
    74,532.75/102,853.56 = 42,720.40/x
  3. Step 3: Cross multiply
    74,532.75x = 102,853.56 × 42,720.40
  4. Step 4: Simplify right side
    74,532.75x = 4,393,945,224.62
  5. Step 5: Solve for x
    x = 4,393,945,224.62/74,532.75
  6. Step 6: Final answer
    x = 58,953.21

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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.