Home / 51,320.21-70,817.85-28,657.43

Finding the Fourth Proportional to 51,320.21, 70,817.85 and 28,657.43

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Solution

The fourth proportional to 51,320.21, 70,817.85 and 28,657.43 is: 39,545.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,320.21 : 70,817.85 = 28,657.43 : x
  2. Step 2: Convert to fraction form
    51,320.21/70,817.85 = 28,657.43/x
  3. Step 3: Cross multiply
    51,320.21x = 70,817.85 × 28,657.43
  4. Step 4: Simplify right side
    51,320.21x = 2,029,457,579.13
  5. Step 5: Solve for x
    x = 2,029,457,579.13/51,320.21
  6. Step 6: Final answer
    x = 39,545.00

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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.