Home / 55,991.09-77,267.68-30,840.59

Finding the Fourth Proportional to 55,991.09, 77,267.68 and 30,840.59

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Solution

The fourth proportional to 55,991.09, 77,267.68 and 30,840.59 is: 42,560.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,991.09 : 77,267.68 = 30,840.59 : x
  2. Step 2: Convert to fraction form
    55,991.09/77,267.68 = 30,840.59/x
  3. Step 3: Cross multiply
    55,991.09x = 77,267.68 × 30,840.59
  4. Step 4: Simplify right side
    55,991.09x = 2,382,980,839.13
  5. Step 5: Solve for x
    x = 2,382,980,839.13/55,991.09
  6. Step 6: Final answer
    x = 42,560.00

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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.