Home / 99,022.68-136,649.43-56,001.42

Finding the Fourth Proportional to 99,022.68, 136,649.43 and 56,001.42

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Solution

The fourth proportional to 99,022.68, 136,649.43 and 56,001.42 is: 77,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,022.68 : 136,649.43 = 56,001.42 : x
  2. Step 2: Convert to fraction form
    99,022.68/136,649.43 = 56,001.42/x
  3. Step 3: Cross multiply
    99,022.68x = 136,649.43 × 56,001.42
  4. Step 4: Simplify right side
    99,022.68x = 7,652,562,122.19
  5. Step 5: Solve for x
    x = 7,652,562,122.19/99,022.68
  6. Step 6: Final answer
    x = 77,280.90

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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.