Home / 86,216.61-118,977.78-48,490.86

Finding the Fourth Proportional to 86,216.61, 118,977.78 and 48,490.86

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Solution

The fourth proportional to 86,216.61, 118,977.78 and 48,490.86 is: 66,916.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,216.61 : 118,977.78 = 48,490.86 : x
  2. Step 2: Convert to fraction form
    86,216.61/118,977.78 = 48,490.86/x
  3. Step 3: Cross multiply
    86,216.61x = 118,977.78 × 48,490.86
  4. Step 4: Simplify right side
    86,216.61x = 5,769,334,630.64
  5. Step 5: Solve for x
    x = 5,769,334,630.64/86,216.61
  6. Step 6: Final answer
    x = 66,916.74

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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.