Home / 74,209.37-102,410.07-42,378.29

Finding the Fourth Proportional to 74,209.37, 102,410.07 and 42,378.29

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Solution

The fourth proportional to 74,209.37, 102,410.07 and 42,378.29 is: 58,482.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,209.37 : 102,410.07 = 42,378.29 : x
  2. Step 2: Convert to fraction form
    74,209.37/102,410.07 = 42,378.29/x
  3. Step 3: Cross multiply
    74,209.37x = 102,410.07 × 42,378.29
  4. Step 4: Simplify right side
    74,209.37x = 4,339,963,596.83
  5. Step 5: Solve for x
    x = 4,339,963,596.83/74,209.37
  6. Step 6: Final answer
    x = 58,482.69

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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.