Home / 74,120.24-102,289.56-42,295.34

Finding the Fourth Proportional to 74,120.24, 102,289.56 and 42,295.34

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Solution

The fourth proportional to 74,120.24, 102,289.56 and 42,295.34 is: 58,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,120.24 : 102,289.56 = 42,295.34 : x
  2. Step 2: Convert to fraction form
    74,120.24/102,289.56 = 42,295.34/x
  3. Step 3: Cross multiply
    74,120.24x = 102,289.56 × 42,295.34
  4. Step 4: Simplify right side
    74,120.24x = 4,326,371,718.65
  5. Step 5: Solve for x
    x = 4,326,371,718.65/74,120.24
  6. Step 6: Final answer
    x = 58,369.64

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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.