Home / 55,906.30-77,127.87-31,702.15

Finding the Fourth Proportional to 55,906.30, 77,127.87 and 31,702.15

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Solution

The fourth proportional to 55,906.30, 77,127.87 and 31,702.15 is: 43,736.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,906.30 : 77,127.87 = 31,702.15 : x
  2. Step 2: Convert to fraction form
    55,906.30/77,127.87 = 31,702.15/x
  3. Step 3: Cross multiply
    55,906.30x = 77,127.87 × 31,702.15
  4. Step 4: Simplify right side
    55,906.30x = 2,445,119,303.92
  5. Step 5: Solve for x
    x = 2,445,119,303.92/55,906.30
  6. Step 6: Final answer
    x = 43,736.02

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1.5x scale

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.