Home / 93,746.16-140,640.28-31,415.04

Finding the Fourth Proportional to 93,746.16, 140,640.28 and 31,415.04

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Solution

The fourth proportional to 93,746.16, 140,640.28 and 31,415.04 is: 47,129.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,746.16 : 140,640.28 = 31,415.04 : x
  2. Step 2: Convert to fraction form
    93,746.16/140,640.28 = 31,415.04/x
  3. Step 3: Cross multiply
    93,746.16x = 140,640.28 × 31,415.04
  4. Step 4: Simplify right side
    93,746.16x = 4,418,220,021.81
  5. Step 5: Solve for x
    x = 4,418,220,021.81/93,746.16
  6. Step 6: Final answer
    x = 47,129.61

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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.