Home / 78,831.84-118,172.58-26,204.46

Finding the Fourth Proportional to 78,831.84, 118,172.58 and 26,204.46

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Solution

The fourth proportional to 78,831.84, 118,172.58 and 26,204.46 is: 39,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,831.84 : 118,172.58 = 26,204.46 : x
  2. Step 2: Convert to fraction form
    78,831.84/118,172.58 = 26,204.46/x
  3. Step 3: Cross multiply
    78,831.84x = 118,172.58 × 26,204.46
  4. Step 4: Simplify right side
    78,831.84x = 3,096,648,645.71
  5. Step 5: Solve for x
    x = 3,096,648,645.71/78,831.84
  6. Step 6: Final answer
    x = 39,281.70

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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.