Home / 93,288.30-128,741.10-53,000.79

Finding the Fourth Proportional to 93,288.30, 128,741.10 and 53,000.79

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Solution

The fourth proportional to 93,288.30, 128,741.10 and 53,000.79 is: 73,142.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,288.30 : 128,741.10 = 53,000.79 : x
  2. Step 2: Convert to fraction form
    93,288.30/128,741.10 = 53,000.79/x
  3. Step 3: Cross multiply
    93,288.30x = 128,741.10 × 53,000.79
  4. Step 4: Simplify right side
    93,288.30x = 6,823,380,005.47
  5. Step 5: Solve for x
    x = 6,823,380,005.47/93,288.30
  6. Step 6: Final answer
    x = 73,142.93

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Why These Related Problems?

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