Home / 75,086.04-103,630.38-42,820.74

Finding the Fourth Proportional to 75,086.04, 103,630.38 and 42,820.74

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Solution

The fourth proportional to 75,086.04, 103,630.38 and 42,820.74 is: 59,099.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,086.04 : 103,630.38 = 42,820.74 : x
  2. Step 2: Convert to fraction form
    75,086.04/103,630.38 = 42,820.74/x
  3. Step 3: Cross multiply
    75,086.04x = 103,630.38 × 42,820.74
  4. Step 4: Simplify right side
    75,086.04x = 4,437,529,558.08
  5. Step 5: Solve for x
    x = 4,437,529,558.08/75,086.04
  6. Step 6: Final answer
    x = 59,099.26

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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.