Home / 56,172.54-77,517.60-31,021.50

Finding the Fourth Proportional to 56,172.54, 77,517.60 and 31,021.50

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Solution

The fourth proportional to 56,172.54, 77,517.60 and 31,021.50 is: 42,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,172.54 : 77,517.60 = 31,021.50 : x
  2. Step 2: Convert to fraction form
    56,172.54/77,517.60 = 31,021.50/x
  3. Step 3: Cross multiply
    56,172.54x = 77,517.60 × 31,021.50
  4. Step 4: Simplify right side
    56,172.54x = 2,404,712,228.40
  5. Step 5: Solve for x
    x = 2,404,712,228.40/56,172.54
  6. Step 6: Final answer
    x = 42,809.39

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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.