Home / 74,623.70-111,935.55-66,458.90

Finding the Fourth Proportional to 74,623.70, 111,935.55 and 66,458.90

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Solution

The fourth proportional to 74,623.70, 111,935.55 and 66,458.90 is: 99,688.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,623.70 : 111,935.55 = 66,458.90 : x
  2. Step 2: Convert to fraction form
    74,623.70/111,935.55 = 66,458.90/x
  3. Step 3: Cross multiply
    74,623.70x = 111,935.55 × 66,458.90
  4. Step 4: Simplify right side
    74,623.70x = 7,439,113,523.90
  5. Step 5: Solve for x
    x = 7,439,113,523.90/74,623.70
  6. Step 6: Final answer
    x = 99,688.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.