Home / 77,386.10-115,906.35-59,717.30

Finding the Fourth Proportional to 77,386.10, 115,906.35 and 59,717.30

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Solution

The fourth proportional to 77,386.10, 115,906.35 and 59,717.30 is: 89,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,386.10 : 115,906.35 = 59,717.30 : x
  2. Step 2: Convert to fraction form
    77,386.10/115,906.35 = 59,717.30/x
  3. Step 3: Cross multiply
    77,386.10x = 115,906.35 × 59,717.30
  4. Step 4: Simplify right side
    77,386.10x = 6,921,614,274.86
  5. Step 5: Solve for x
    x = 6,921,614,274.86/77,386.10
  6. Step 6: Final answer
    x = 89,442.60

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1.5x scale

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.