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Finding the Fourth Proportional to 79,748.25, 110,068.52 and 45,779.70

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Solution

The fourth proportional to 79,748.25, 110,068.52 and 45,779.70 is: 63,185.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,748.25 : 110,068.52 = 45,779.70 : x
  2. Step 2: Convert to fraction form
    79,748.25/110,068.52 = 45,779.70/x
  3. Step 3: Cross multiply
    79,748.25x = 110,068.52 × 45,779.70
  4. Step 4: Simplify right side
    79,748.25x = 5,038,903,825.04
  5. Step 5: Solve for x
    x = 5,038,903,825.04/79,748.25
  6. Step 6: Final answer
    x = 63,185.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.