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Finding the Fourth Proportional to 93,154.72, 139,758 and 51,630.88

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Solution

The fourth proportional to 93,154.72, 139,758 and 51,630.88 is: 77,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,154.72 : 139,758 = 51,630.88 : x
  2. Step 2: Convert to fraction form
    93,154.72/139,758 = 51,630.88/x
  3. Step 3: Cross multiply
    93,154.72x = 139,758 × 51,630.88
  4. Step 4: Simplify right side
    93,154.72x = 7,215,828,527.04
  5. Step 5: Solve for x
    x = 7,215,828,527.04/93,154.72
  6. Step 6: Final answer
    x = 77,460.69

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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.