Home / 77,437.86-106,863.78-42,982.24

Finding the Fourth Proportional to 77,437.86, 106,863.78 and 42,982.24

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Solution

The fourth proportional to 77,437.86, 106,863.78 and 42,982.24 is: 59,315.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,437.86 : 106,863.78 = 42,982.24 : x
  2. Step 2: Convert to fraction form
    77,437.86/106,863.78 = 42,982.24/x
  3. Step 3: Cross multiply
    77,437.86x = 106,863.78 × 42,982.24
  4. Step 4: Simplify right side
    77,437.86x = 4,593,244,639.27
  5. Step 5: Solve for x
    x = 4,593,244,639.27/77,437.86
  6. Step 6: Final answer
    x = 59,315.23

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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.