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Finding the Fourth Proportional to 76,241.60, 105,210.32 and 42,250.58

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Solution

The fourth proportional to 76,241.60, 105,210.32 and 42,250.58 is: 58,304.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,241.60 : 105,210.32 = 42,250.58 : x
  2. Step 2: Convert to fraction form
    76,241.60/105,210.32 = 42,250.58/x
  3. Step 3: Cross multiply
    76,241.60x = 105,210.32 × 42,250.58
  4. Step 4: Simplify right side
    76,241.60x = 4,445,197,041.99
  5. Step 5: Solve for x
    x = 4,445,197,041.99/76,241.60
  6. Step 6: Final answer
    x = 58,304.09

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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.