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Finding the Fourth Proportional to 57,779.95, 86,513.46 and 30,019.63

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Solution

The fourth proportional to 57,779.95, 86,513.46 and 30,019.63 is: 44,948.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,779.95 : 86,513.46 = 30,019.63 : x
  2. Step 2: Convert to fraction form
    57,779.95/86,513.46 = 30,019.63/x
  3. Step 3: Cross multiply
    57,779.95x = 86,513.46 × 30,019.63
  4. Step 4: Simplify right side
    57,779.95x = 2,597,102,059.22
  5. Step 5: Solve for x
    x = 2,597,102,059.22/57,779.95
  6. Step 6: Final answer
    x = 44,948.15

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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.