Home / 77,922.30-107,533.27-42,112.23

Finding the Fourth Proportional to 77,922.30, 107,533.27 and 42,112.23

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Solution

The fourth proportional to 77,922.30, 107,533.27 and 42,112.23 is: 58,115.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,922.30 : 107,533.27 = 42,112.23 : x
  2. Step 2: Convert to fraction form
    77,922.30/107,533.27 = 42,112.23/x
  3. Step 3: Cross multiply
    77,922.30x = 107,533.27 × 42,112.23
  4. Step 4: Simplify right side
    77,922.30x = 4,528,465,750.72
  5. Step 5: Solve for x
    x = 4,528,465,750.72/77,922.30
  6. Step 6: Final answer
    x = 58,115.14

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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.