Home / 86,358.95-129,556.04-36,439.05

Finding the Fourth Proportional to 86,358.95, 129,556.04 and 36,439.05

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Solution

The fourth proportional to 86,358.95, 129,556.04 and 36,439.05 is: 54,666.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,358.95 : 129,556.04 = 36,439.05 : x
  2. Step 2: Convert to fraction form
    86,358.95/129,556.04 = 36,439.05/x
  3. Step 3: Cross multiply
    86,358.95x = 129,556.04 × 36,439.05
  4. Step 4: Simplify right side
    86,358.95x = 4,720,898,837.17
  5. Step 5: Solve for x
    x = 4,720,898,837.17/86,358.95
  6. Step 6: Final answer
    x = 54,666.01

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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.