Home / 76,831.74-106,020.03-42,837.03

Finding the Fourth Proportional to 76,831.74, 106,020.03 and 42,837.03

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Solution

The fourth proportional to 76,831.74, 106,020.03 and 42,837.03 is: 59,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831.74 : 106,020.03 = 42,837.03 : x
  2. Step 2: Convert to fraction form
    76,831.74/106,020.03 = 42,837.03/x
  3. Step 3: Cross multiply
    76,831.74x = 106,020.03 × 42,837.03
  4. Step 4: Simplify right side
    76,831.74x = 4,541,583,205.71
  5. Step 5: Solve for x
    x = 4,541,583,205.71/76,831.74
  6. Step 6: Final answer
    x = 59,110.77

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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.