Home / 55,877.85-77,111.52-30,384.19

Finding the Fourth Proportional to 55,877.85, 77,111.52 and 30,384.19

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Solution

The fourth proportional to 55,877.85, 77,111.52 and 30,384.19 is: 41,930.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,877.85 : 77,111.52 = 30,384.19 : x
  2. Step 2: Convert to fraction form
    55,877.85/77,111.52 = 30,384.19/x
  3. Step 3: Cross multiply
    55,877.85x = 77,111.52 × 30,384.19
  4. Step 4: Simplify right side
    55,877.85x = 2,342,971,074.87
  5. Step 5: Solve for x
    x = 2,342,971,074.87/55,877.85
  6. Step 6: Final answer
    x = 41,930.23

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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.