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Finding the Fourth Proportional to 93,863.16, 129,531.20 and 51,421.84

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Solution

The fourth proportional to 93,863.16, 129,531.20 and 51,421.84 is: 70,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,863.16 : 129,531.20 = 51,421.84 : x
  2. Step 2: Convert to fraction form
    93,863.16/129,531.20 = 51,421.84/x
  3. Step 3: Cross multiply
    93,863.16x = 129,531.20 × 51,421.84
  4. Step 4: Simplify right side
    93,863.16x = 6,660,732,641.41
  5. Step 5: Solve for x
    x = 6,660,732,641.41/93,863.16
  6. Step 6: Final answer
    x = 70,962.16

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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.