Home / 85,852.40-128,784.38-29,697.94

Finding the Fourth Proportional to 85,852.40, 128,784.38 and 29,697.94

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Solution

The fourth proportional to 85,852.40, 128,784.38 and 29,697.94 is: 44,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,852.40 : 128,784.38 = 29,697.94 : x
  2. Step 2: Convert to fraction form
    85,852.40/128,784.38 = 29,697.94/x
  3. Step 3: Cross multiply
    85,852.40x = 128,784.38 × 29,697.94
  4. Step 4: Simplify right side
    85,852.40x = 3,824,630,790.18
  5. Step 5: Solve for x
    x = 3,824,630,790.18/85,852.40
  6. Step 6: Final answer
    x = 44,548.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.