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Finding the Fourth Proportional to 78,779.84, 118,134.10 and 22,607.06

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Solution

The fourth proportional to 78,779.84, 118,134.10 and 22,607.06 is: 33,900.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,779.84 : 118,134.10 = 22,607.06 : x
  2. Step 2: Convert to fraction form
    78,779.84/118,134.10 = 22,607.06/x
  3. Step 3: Cross multiply
    78,779.84x = 118,134.10 × 22,607.06
  4. Step 4: Simplify right side
    78,779.84x = 2,670,664,686.75
  5. Step 5: Solve for x
    x = 2,670,664,686.75/78,779.84
  6. Step 6: Final answer
    x = 33,900.36

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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.