Home / 99,274.01-137,010.08-56,831.63

Finding the Fourth Proportional to 99,274.01, 137,010.08 and 56,831.63

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Solution

The fourth proportional to 99,274.01, 137,010.08 and 56,831.63 is: 78,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,274.01 : 137,010.08 = 56,831.63 : x
  2. Step 2: Convert to fraction form
    99,274.01/137,010.08 = 56,831.63/x
  3. Step 3: Cross multiply
    99,274.01x = 137,010.08 × 56,831.63
  4. Step 4: Simplify right side
    99,274.01x = 7,786,505,629.86
  5. Step 5: Solve for x
    x = 7,786,505,629.86/99,274.01
  6. Step 6: Final answer
    x = 78,434.49

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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.