Home / 93,360.78-140,041.20-31,031.28

Finding the Fourth Proportional to 93,360.78, 140,041.20 and 31,031.28

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Solution

The fourth proportional to 93,360.78, 140,041.20 and 31,031.28 is: 46,546.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,360.78 : 140,041.20 = 31,031.28 : x
  2. Step 2: Convert to fraction form
    93,360.78/140,041.20 = 31,031.28/x
  3. Step 3: Cross multiply
    93,360.78x = 140,041.20 × 31,031.28
  4. Step 4: Simplify right side
    93,360.78x = 4,345,657,688.74
  5. Step 5: Solve for x
    x = 4,345,657,688.74/93,360.78
  6. Step 6: Final answer
    x = 46,546.93

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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.