Home / 78,956.14-118,457.28-26,402.52

Finding the Fourth Proportional to 78,956.14, 118,457.28 and 26,402.52

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Solution

The fourth proportional to 78,956.14, 118,457.28 and 26,402.52 is: 39,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,956.14 : 118,457.28 = 26,402.52 : x
  2. Step 2: Convert to fraction form
    78,956.14/118,457.28 = 26,402.52/x
  3. Step 3: Cross multiply
    78,956.14x = 118,457.28 × 26,402.52
  4. Step 4: Simplify right side
    78,956.14x = 3,127,570,704.35
  5. Step 5: Solve for x
    x = 3,127,570,704.35/78,956.14
  6. Step 6: Final answer
    x = 39,611.49

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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.