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Finding the Fourth Proportional to 78,842.83, 108,802.32 and 43,032.53

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Solution

The fourth proportional to 78,842.83, 108,802.32 and 43,032.53 is: 59,384.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,842.83 : 108,802.32 = 43,032.53 : x
  2. Step 2: Convert to fraction form
    78,842.83/108,802.32 = 43,032.53/x
  3. Step 3: Cross multiply
    78,842.83x = 108,802.32 × 43,032.53
  4. Step 4: Simplify right side
    78,842.83x = 4,682,038,555.46
  5. Step 5: Solve for x
    x = 4,682,038,555.46/78,842.83
  6. Step 6: Final answer
    x = 59,384.46

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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.