Home / 85,528.58-128,256.17-29,374.34

Finding the Fourth Proportional to 85,528.58, 128,256.17 and 29,374.34

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Solution

The fourth proportional to 85,528.58, 128,256.17 and 29,374.34 is: 44,048.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,528.58 : 128,256.17 = 29,374.34 : x
  2. Step 2: Convert to fraction form
    85,528.58/128,256.17 = 29,374.34/x
  3. Step 3: Cross multiply
    85,528.58x = 128,256.17 × 29,374.34
  4. Step 4: Simplify right side
    85,528.58x = 3,767,439,556.53
  5. Step 5: Solve for x
    x = 3,767,439,556.53/85,528.58
  6. Step 6: Final answer
    x = 44,048.90

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1.5x scale

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.