Home / 78,946.40-118,225.20-37,344.80

Finding the Fourth Proportional to 78,946.40, 118,225.20 and 37,344.80

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Solution

The fourth proportional to 78,946.40, 118,225.20 and 37,344.80 is: 55,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,946.40 : 118,225.20 = 37,344.80 : x
  2. Step 2: Convert to fraction form
    78,946.40/118,225.20 = 37,344.80/x
  3. Step 3: Cross multiply
    78,946.40x = 118,225.20 × 37,344.80
  4. Step 4: Simplify right side
    78,946.40x = 4,415,096,448.96
  5. Step 5: Solve for x
    x = 4,415,096,448.96/78,946.40
  6. Step 6: Final answer
    x = 55,925.24

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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.