Home / 74,831.36-111,699.53-65,974.28

Finding the Fourth Proportional to 74,831.36, 111,699.53 and 65,974.28

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Solution

The fourth proportional to 74,831.36, 111,699.53 and 65,974.28 is: 98,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,831.36 : 111,699.53 = 65,974.28 : x
  2. Step 2: Convert to fraction form
    74,831.36/111,699.53 = 65,974.28/x
  3. Step 3: Cross multiply
    74,831.36x = 111,699.53 × 65,974.28
  4. Step 4: Simplify right side
    74,831.36x = 7,369,296,068.09
  5. Step 5: Solve for x
    x = 7,369,296,068.09/74,831.36
  6. Step 6: Final answer
    x = 98,478.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.