Home / 78,598.32-117,915.93-26,007.81

Finding the Fourth Proportional to 78,598.32, 117,915.93 and 26,007.81

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Solution

The fourth proportional to 78,598.32, 117,915.93 and 26,007.81 is: 39,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,598.32 : 117,915.93 = 26,007.81 : x
  2. Step 2: Convert to fraction form
    78,598.32/117,915.93 = 26,007.81/x
  3. Step 3: Cross multiply
    78,598.32x = 117,915.93 × 26,007.81
  4. Step 4: Simplify right side
    78,598.32x = 3,066,735,103.41
  5. Step 5: Solve for x
    x = 3,066,735,103.41/78,598.32
  6. Step 6: Final answer
    x = 39,017.82

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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.