Home / 77,400.15-106,834.31-45,587.40

Finding the Fourth Proportional to 77,400.15, 106,834.31 and 45,587.40

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Solution

The fourth proportional to 77,400.15, 106,834.31 and 45,587.40 is: 62,923.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,400.15 : 106,834.31 = 45,587.40 : x
  2. Step 2: Convert to fraction form
    77,400.15/106,834.31 = 45,587.40/x
  3. Step 3: Cross multiply
    77,400.15x = 106,834.31 × 45,587.40
  4. Step 4: Simplify right side
    77,400.15x = 4,870,298,423.69
  5. Step 5: Solve for x
    x = 4,870,298,423.69/77,400.15
  6. Step 6: Final answer
    x = 62,923.63

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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.