Home / 85,434.40-128,122.08-32,116.96

Finding the Fourth Proportional to 85,434.40, 128,122.08 and 32,116.96

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Solution

The fourth proportional to 85,434.40, 128,122.08 and 32,116.96 is: 48,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,434.40 : 128,122.08 = 32,116.96 : x
  2. Step 2: Convert to fraction form
    85,434.40/128,122.08 = 32,116.96/x
  3. Step 3: Cross multiply
    85,434.40x = 128,122.08 × 32,116.96
  4. Step 4: Simplify right side
    85,434.40x = 4,114,891,718.48
  5. Step 5: Solve for x
    x = 4,114,891,718.48/85,434.40
  6. Step 6: Final answer
    x = 48,164.34

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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.