Home / 78,775.06-118,128.03-29,492.50

Finding the Fourth Proportional to 78,775.06, 118,128.03 and 29,492.50

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Solution

The fourth proportional to 78,775.06, 118,128.03 and 29,492.50 is: 44,225.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,775.06 : 118,128.03 = 29,492.50 : x
  2. Step 2: Convert to fraction form
    78,775.06/118,128.03 = 29,492.50/x
  3. Step 3: Cross multiply
    78,775.06x = 118,128.03 × 29,492.50
  4. Step 4: Simplify right side
    78,775.06x = 3,483,890,924.78
  5. Step 5: Solve for x
    x = 3,483,890,924.78/78,775.06
  6. Step 6: Final answer
    x = 44,225.81

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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.