Home / 77,927.64-107,539.88-42,117.54

Finding the Fourth Proportional to 77,927.64, 107,539.88 and 42,117.54

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Solution

The fourth proportional to 77,927.64, 107,539.88 and 42,117.54 is: 58,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,927.64 : 107,539.88 = 42,117.54 : x
  2. Step 2: Convert to fraction form
    77,927.64/107,539.88 = 42,117.54/x
  3. Step 3: Cross multiply
    77,927.64x = 107,539.88 × 42,117.54
  4. Step 4: Simplify right side
    77,927.64x = 4,529,315,197.50
  5. Step 5: Solve for x
    x = 4,529,315,197.50/77,927.64
  6. Step 6: Final answer
    x = 58,122.06

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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.