Home / 78,051.64-107,711.58-42,241.63

Finding the Fourth Proportional to 78,051.64, 107,711.58 and 42,241.63

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Solution

The fourth proportional to 78,051.64, 107,711.58 and 42,241.63 is: 58,293.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,051.64 : 107,711.58 = 42,241.63 : x
  2. Step 2: Convert to fraction form
    78,051.64/107,711.58 = 42,241.63/x
  3. Step 3: Cross multiply
    78,051.64x = 107,711.58 × 42,241.63
  4. Step 4: Simplify right side
    78,051.64x = 4,549,912,709.08
  5. Step 5: Solve for x
    x = 4,549,912,709.08/78,051.64
  6. Step 6: Final answer
    x = 58,293.62

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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.