Home / 77,280.23-106,645.48-43,288.61

Finding the Fourth Proportional to 77,280.23, 106,645.48 and 43,288.61

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Solution

The fourth proportional to 77,280.23, 106,645.48 and 43,288.61 is: 59,737.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,280.23 : 106,645.48 = 43,288.61 : x
  2. Step 2: Convert to fraction form
    77,280.23/106,645.48 = 43,288.61/x
  3. Step 3: Cross multiply
    77,280.23x = 106,645.48 × 43,288.61
  4. Step 4: Simplify right side
    77,280.23x = 4,616,533,950.53
  5. Step 5: Solve for x
    x = 4,616,533,950.53/77,280.23
  6. Step 6: Final answer
    x = 59,737.58

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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.