Home / 85,585.17-128,377.65-32,957.75

Finding the Fourth Proportional to 85,585.17, 128,377.65 and 32,957.75

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Solution

The fourth proportional to 85,585.17, 128,377.65 and 32,957.75 is: 49,436.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,585.17 : 128,377.65 = 32,957.75 : x
  2. Step 2: Convert to fraction form
    85,585.17/128,377.65 = 32,957.75/x
  3. Step 3: Cross multiply
    85,585.17x = 128,377.65 × 32,957.75
  4. Step 4: Simplify right side
    85,585.17x = 4,231,037,852.40
  5. Step 5: Solve for x
    x = 4,231,037,852.40/85,585.17
  6. Step 6: Final answer
    x = 49,436.58

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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.