Home / 78,775.40-118,163.14-26,184.89

Finding the Fourth Proportional to 78,775.40, 118,163.14 and 26,184.89

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Solution

The fourth proportional to 78,775.40, 118,163.14 and 26,184.89 is: 39,277.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,775.40 : 118,163.14 = 26,184.89 : x
  2. Step 2: Convert to fraction form
    78,775.40/118,163.14 = 26,184.89/x
  3. Step 3: Cross multiply
    78,775.40x = 118,163.14 × 26,184.89
  4. Step 4: Simplify right side
    78,775.40x = 3,094,089,052.90
  5. Step 5: Solve for x
    x = 3,094,089,052.90/78,775.40
  6. Step 6: Final answer
    x = 39,277.35

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1.5x scale

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.