Home / 85,395.56-128,123.00-38,044.26

Finding the Fourth Proportional to 85,395.56, 128,123.00 and 38,044.26

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Solution

The fourth proportional to 85,395.56, 128,123.00 and 38,044.26 is: 57,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,395.56 : 128,123.00 = 38,044.26 : x
  2. Step 2: Convert to fraction form
    85,395.56/128,123.00 = 38,044.26/x
  3. Step 3: Cross multiply
    85,395.56x = 128,123.00 × 38,044.26
  4. Step 4: Simplify right side
    85,395.56x = 4,874,344,533.76
  5. Step 5: Solve for x
    x = 4,874,344,533.76/85,395.56
  6. Step 6: Final answer
    x = 57,079.60

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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.