Home / 52,300.89-78,426.63-18,997.74

Finding the Fourth Proportional to 52,300.89, 78,426.63 and 18,997.74

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Solution

The fourth proportional to 52,300.89, 78,426.63 and 18,997.74 is: 28,487.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,300.89 : 78,426.63 = 18,997.74 : x
  2. Step 2: Convert to fraction form
    52,300.89/78,426.63 = 18,997.74/x
  3. Step 3: Cross multiply
    52,300.89x = 78,426.63 × 18,997.74
  4. Step 4: Simplify right side
    52,300.89x = 1,489,928,725.82
  5. Step 5: Solve for x
    x = 1,489,928,725.82/52,300.89
  6. Step 6: Final answer
    x = 28,487.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.