Home / 85,345.04-128,006.30-25,372.28

Finding the Fourth Proportional to 85,345.04, 128,006.30 and 25,372.28

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Solution

The fourth proportional to 85,345.04, 128,006.30 and 25,372.28 is: 38,055.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,345.04 : 128,006.30 = 25,372.28 : x
  2. Step 2: Convert to fraction form
    85,345.04/128,006.30 = 25,372.28/x
  3. Step 3: Cross multiply
    85,345.04x = 128,006.30 × 25,372.28
  4. Step 4: Simplify right side
    85,345.04x = 3,247,811,685.36
  5. Step 5: Solve for x
    x = 3,247,811,685.36/85,345.04
  6. Step 6: Final answer
    x = 38,055.07

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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.