Home / 99,715.02-149,574.65-40,509.89

Finding the Fourth Proportional to 99,715.02, 149,574.65 and 40,509.89

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Solution

The fourth proportional to 99,715.02, 149,574.65 and 40,509.89 is: 60,765.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,715.02 : 149,574.65 = 40,509.89 : x
  2. Step 2: Convert to fraction form
    99,715.02/149,574.65 = 40,509.89/x
  3. Step 3: Cross multiply
    99,715.02x = 149,574.65 × 40,509.89
  4. Step 4: Simplify right side
    99,715.02x = 6,059,251,667.87
  5. Step 5: Solve for x
    x = 6,059,251,667.87/99,715.02
  6. Step 6: Final answer
    x = 60,765.69

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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.