Home / 62,688.60-86,493.02-40,345.56

Finding the Fourth Proportional to 62,688.60, 86,493.02 and 40,345.56

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Solution

The fourth proportional to 62,688.60, 86,493.02 and 40,345.56 is: 55,665.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,688.60 : 86,493.02 = 40,345.56 : x
  2. Step 2: Convert to fraction form
    62,688.60/86,493.02 = 40,345.56/x
  3. Step 3: Cross multiply
    62,688.60x = 86,493.02 × 40,345.56
  4. Step 4: Simplify right side
    62,688.60x = 3,489,609,327.99
  5. Step 5: Solve for x
    x = 3,489,609,327.99/62,688.60
  6. Step 6: Final answer
    x = 55,665.77

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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.