Home / 76,588.20-105,690.87-42,596.46

Finding the Fourth Proportional to 76,588.20, 105,690.87 and 42,596.46

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Solution

The fourth proportional to 76,588.20, 105,690.87 and 42,596.46 is: 58,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,588.20 : 105,690.87 = 42,596.46 : x
  2. Step 2: Convert to fraction form
    76,588.20/105,690.87 = 42,596.46/x
  3. Step 3: Cross multiply
    76,588.20x = 105,690.87 × 42,596.46
  4. Step 4: Simplify right side
    76,588.20x = 4,502,056,916.32
  5. Step 5: Solve for x
    x = 4,502,056,916.32/76,588.20
  6. Step 6: Final answer
    x = 58,782.64

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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.