Home / 55,985.09-77,255.88-30,834.59

Finding the Fourth Proportional to 55,985.09, 77,255.88 and 30,834.59

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Solution

The fourth proportional to 55,985.09, 77,255.88 and 30,834.59 is: 42,549.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,985.09 : 77,255.88 = 30,834.59 : x
  2. Step 2: Convert to fraction form
    55,985.09/77,255.88 = 30,834.59/x
  3. Step 3: Cross multiply
    55,985.09x = 77,255.88 × 30,834.59
  4. Step 4: Simplify right side
    55,985.09x = 2,382,153,384.89
  5. Step 5: Solve for x
    x = 2,382,153,384.89/55,985.09
  6. Step 6: Final answer
    x = 42,549.78

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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.