Home / 77,652.06-107,152.44-45,394.22

Finding the Fourth Proportional to 77,652.06, 107,152.44 and 45,394.22

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Solution

The fourth proportional to 77,652.06, 107,152.44 and 45,394.22 is: 62,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,652.06 : 107,152.44 = 45,394.22 : x
  2. Step 2: Convert to fraction form
    77,652.06/107,152.44 = 45,394.22/x
  3. Step 3: Cross multiply
    77,652.06x = 107,152.44 × 45,394.22
  4. Step 4: Simplify right side
    77,652.06x = 4,864,101,434.90
  5. Step 5: Solve for x
    x = 4,864,101,434.90/77,652.06
  6. Step 6: Final answer
    x = 62,639.70

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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.