Home / 51,125.99-76,699.35-21,543.81

Finding the Fourth Proportional to 51,125.99, 76,699.35 and 21,543.81

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Solution

The fourth proportional to 51,125.99, 76,699.35 and 21,543.81 is: 32,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,125.99 : 76,699.35 = 21,543.81 : x
  2. Step 2: Convert to fraction form
    51,125.99/76,699.35 = 21,543.81/x
  3. Step 3: Cross multiply
    51,125.99x = 76,699.35 × 21,543.81
  4. Step 4: Simplify right side
    51,125.99x = 1,652,395,732.31
  5. Step 5: Solve for x
    x = 1,652,395,732.31/51,125.99
  6. Step 6: Final answer
    x = 32,320.08

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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.