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Finding the Fourth Proportional to 91,064.94, 125,669.06 and 50,779.20

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Solution

The fourth proportional to 91,064.94, 125,669.06 and 50,779.20 is: 70,074.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,064.94 : 125,669.06 = 50,779.20 : x
  2. Step 2: Convert to fraction form
    91,064.94/125,669.06 = 50,779.20/x
  3. Step 3: Cross multiply
    91,064.94x = 125,669.06 × 50,779.20
  4. Step 4: Simplify right side
    91,064.94x = 6,381,374,331.55
  5. Step 5: Solve for x
    x = 6,381,374,331.55/91,064.94
  6. Step 6: Final answer
    x = 70,074.99

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