Home / 77,140.02-115,724.50-35,023.08

Finding the Fourth Proportional to 77,140.02, 115,724.50 and 35,023.08

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Solution

The fourth proportional to 77,140.02, 115,724.50 and 35,023.08 is: 52,541.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,140.02 : 115,724.50 = 35,023.08 : x
  2. Step 2: Convert to fraction form
    77,140.02/115,724.50 = 35,023.08/x
  3. Step 3: Cross multiply
    77,140.02x = 115,724.50 × 35,023.08
  4. Step 4: Simplify right side
    77,140.02x = 4,053,028,421.46
  5. Step 5: Solve for x
    x = 4,053,028,421.46/77,140.02
  6. Step 6: Final answer
    x = 52,541.19

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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.