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Finding the Fourth Proportional to 72,807.68, 100,505.58 and 48,948.18

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Solution

The fourth proportional to 72,807.68, 100,505.58 and 48,948.18 is: 67,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,807.68 : 100,505.58 = 48,948.18 : x
  2. Step 2: Convert to fraction form
    72,807.68/100,505.58 = 48,948.18/x
  3. Step 3: Cross multiply
    72,807.68x = 100,505.58 × 48,948.18
  4. Step 4: Simplify right side
    72,807.68x = 4,919,565,220.84
  5. Step 5: Solve for x
    x = 4,919,565,220.84/72,807.68
  6. Step 6: Final answer
    x = 67,569.32

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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.