Home / 76,550.12-105,626.40-42,557.66

Finding the Fourth Proportional to 76,550.12, 105,626.40 and 42,557.66

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Solution

The fourth proportional to 76,550.12, 105,626.40 and 42,557.66 is: 58,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,550.12 : 105,626.40 = 42,557.66 : x
  2. Step 2: Convert to fraction form
    76,550.12/105,626.40 = 42,557.66/x
  3. Step 3: Cross multiply
    76,550.12x = 105,626.40 × 42,557.66
  4. Step 4: Simplify right side
    76,550.12x = 4,495,212,418.22
  5. Step 5: Solve for x
    x = 4,495,212,418.22/76,550.12
  6. Step 6: Final answer
    x = 58,722.47

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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.