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Finding the Fourth Proportional to 55,323.68, 83,018.34 and 51,821.07

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Solution

The fourth proportional to 55,323.68, 83,018.34 and 51,821.07 is: 77,762.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,323.68 : 83,018.34 = 51,821.07 : x
  2. Step 2: Convert to fraction form
    55,323.68/83,018.34 = 51,821.07/x
  3. Step 3: Cross multiply
    55,323.68x = 83,018.34 × 51,821.07
  4. Step 4: Simplify right side
    55,323.68x = 4,302,099,208.42
  5. Step 5: Solve for x
    x = 4,302,099,208.42/55,323.68
  6. Step 6: Final answer
    x = 77,762.34

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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.