Home / 74,747.32-103,146.78-42,913.24

Finding the Fourth Proportional to 74,747.32, 103,146.78 and 42,913.24

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Solution

The fourth proportional to 74,747.32, 103,146.78 and 42,913.24 is: 59,217.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.32 : 103,146.78 = 42,913.24 : x
  2. Step 2: Convert to fraction form
    74,747.32/103,146.78 = 42,913.24/x
  3. Step 3: Cross multiply
    74,747.32x = 103,146.78 × 42,913.24
  4. Step 4: Simplify right side
    74,747.32x = 4,426,362,525.37
  5. Step 5: Solve for x
    x = 4,426,362,525.37/74,747.32
  6. Step 6: Final answer
    x = 59,217.68

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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.