Home / 77,835.77-116,753.12-30,455.63

Finding the Fourth Proportional to 77,835.77, 116,753.12 and 30,455.63

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Solution

The fourth proportional to 77,835.77, 116,753.12 and 30,455.63 is: 45,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,835.77 : 116,753.12 = 30,455.63 : x
  2. Step 2: Convert to fraction form
    77,835.77/116,753.12 = 30,455.63/x
  3. Step 3: Cross multiply
    77,835.77x = 116,753.12 × 30,455.63
  4. Step 4: Simplify right side
    77,835.77x = 3,555,789,671.79
  5. Step 5: Solve for x
    x = 3,555,789,671.79/77,835.77
  6. Step 6: Final answer
    x = 45,683.23

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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.