Home / 55,981.74-77,220.09-33,305.40

Finding the Fourth Proportional to 55,981.74, 77,220.09 and 33,305.40

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Solution

The fourth proportional to 55,981.74, 77,220.09 and 33,305.40 is: 45,940.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,981.74 : 77,220.09 = 33,305.40 : x
  2. Step 2: Convert to fraction form
    55,981.74/77,220.09 = 33,305.40/x
  3. Step 3: Cross multiply
    55,981.74x = 77,220.09 × 33,305.40
  4. Step 4: Simplify right side
    55,981.74x = 2,571,845,985.49
  5. Step 5: Solve for x
    x = 2,571,845,985.49/55,981.74
  6. Step 6: Final answer
    x = 45,940.80

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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.