Home / 85,513.52-118,012.34-48,720.89

Finding the Fourth Proportional to 85,513.52, 118,012.34 and 48,720.89

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Solution

The fourth proportional to 85,513.52, 118,012.34 and 48,720.89 is: 67,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,513.52 : 118,012.34 = 48,720.89 : x
  2. Step 2: Convert to fraction form
    85,513.52/118,012.34 = 48,720.89/x
  3. Step 3: Cross multiply
    85,513.52x = 118,012.34 × 48,720.89
  4. Step 4: Simplify right side
    85,513.52x = 5,749,666,652.62
  5. Step 5: Solve for x
    x = 5,749,666,652.62/85,513.52
  6. Step 6: Final answer
    x = 67,236.93

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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.