Home / 85,777.40-118,372.82-48,051.65

Finding the Fourth Proportional to 85,777.40, 118,372.82 and 48,051.65

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Solution

The fourth proportional to 85,777.40, 118,372.82 and 48,051.65 is: 66,311.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,777.40 : 118,372.82 = 48,051.65 : x
  2. Step 2: Convert to fraction form
    85,777.40/118,372.82 = 48,051.65/x
  3. Step 3: Cross multiply
    85,777.40x = 118,372.82 × 48,051.65
  4. Step 4: Simplify right side
    85,777.40x = 5,688,009,316.15
  5. Step 5: Solve for x
    x = 5,688,009,316.15/85,777.40
  6. Step 6: Final answer
    x = 66,311.28

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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.