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Finding the Fourth Proportional to 78,925, 118,408.02 and 23,521

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Solution

The fourth proportional to 78,925, 118,408.02 and 23,521 is: 35,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,925 : 118,408.02 = 23,521 : x
  2. Step 2: Convert to fraction form
    78,925/118,408.02 = 23,521/x
  3. Step 3: Cross multiply
    78,925x = 118,408.02 × 23,521
  4. Step 4: Simplify right side
    78,925x = 2,785,075,038.42
  5. Step 5: Solve for x
    x = 2,785,075,038.42/78,925
  6. Step 6: Final answer
    x = 35,287.62

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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.