Home / 78,913.42-118,380.85-25,588.01

Finding the Fourth Proportional to 78,913.42, 118,380.85 and 25,588.01

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Solution

The fourth proportional to 78,913.42, 118,380.85 and 25,588.01 is: 38,385.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,913.42 : 118,380.85 = 25,588.01 : x
  2. Step 2: Convert to fraction form
    78,913.42/118,380.85 = 25,588.01/x
  3. Step 3: Cross multiply
    78,913.42x = 118,380.85 × 25,588.01
  4. Step 4: Simplify right side
    78,913.42x = 3,029,130,245.67
  5. Step 5: Solve for x
    x = 3,029,130,245.67/78,913.42
  6. Step 6: Final answer
    x = 38,385.49

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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.