Home / 56,433.67-77,877.33-30,940.09

Finding the Fourth Proportional to 56,433.67, 77,877.33 and 30,940.09

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Solution

The fourth proportional to 56,433.67, 77,877.33 and 30,940.09 is: 42,696.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.67 : 77,877.33 = 30,940.09 : x
  2. Step 2: Convert to fraction form
    56,433.67/77,877.33 = 30,940.09/x
  3. Step 3: Cross multiply
    56,433.67x = 77,877.33 × 30,940.09
  4. Step 4: Simplify right side
    56,433.67x = 2,409,531,599.16
  5. Step 5: Solve for x
    x = 2,409,531,599.16/56,433.67
  6. Step 6: Final answer
    x = 42,696.70

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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.