Home / 99,559.02-149,314.96-28,479.47

Finding the Fourth Proportional to 99,559.02, 149,314.96 and 28,479.47

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Solution

The fourth proportional to 99,559.02, 149,314.96 and 28,479.47 is: 42,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,559.02 : 149,314.96 = 28,479.47 : x
  2. Step 2: Convert to fraction form
    99,559.02/149,314.96 = 28,479.47/x
  3. Step 3: Cross multiply
    99,559.02x = 149,314.96 × 28,479.47
  4. Step 4: Simplify right side
    99,559.02x = 4,252,410,923.87
  5. Step 5: Solve for x
    x = 4,252,410,923.87/99,559.02
  6. Step 6: Final answer
    x = 42,712.46

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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.