Home / 99,723.02-149,649.33-53,008.70

Finding the Fourth Proportional to 99,723.02, 149,649.33 and 53,008.70

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Solution

The fourth proportional to 99,723.02, 149,649.33 and 53,008.70 is: 79,547.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,723.02 : 149,649.33 = 53,008.70 : x
  2. Step 2: Convert to fraction form
    99,723.02/149,649.33 = 53,008.70/x
  3. Step 3: Cross multiply
    99,723.02x = 149,649.33 × 53,008.70
  4. Step 4: Simplify right side
    99,723.02x = 7,932,716,439.17
  5. Step 5: Solve for x
    x = 7,932,716,439.17/99,723.02
  6. Step 6: Final answer
    x = 79,547.50

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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.