Home / 77,971.32-107,600.32-42,161.24

Finding the Fourth Proportional to 77,971.32, 107,600.32 and 42,161.24

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Solution

The fourth proportional to 77,971.32, 107,600.32 and 42,161.24 is: 58,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,971.32 : 107,600.32 = 42,161.24 : x
  2. Step 2: Convert to fraction form
    77,971.32/107,600.32 = 42,161.24/x
  3. Step 3: Cross multiply
    77,971.32x = 107,600.32 × 42,161.24
  4. Step 4: Simplify right side
    77,971.32x = 4,536,562,915.60
  5. Step 5: Solve for x
    x = 4,536,562,915.60/77,971.32
  6. Step 6: Final answer
    x = 58,182.46

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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.