Home / 86,010.23-129,031.58-38,624.21

Finding the Fourth Proportional to 86,010.23, 129,031.58 and 38,624.21

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Solution

The fourth proportional to 86,010.23, 129,031.58 and 38,624.21 is: 57,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,010.23 : 129,031.58 = 38,624.21 : x
  2. Step 2: Convert to fraction form
    86,010.23/129,031.58 = 38,624.21/x
  3. Step 3: Cross multiply
    86,010.23x = 129,031.58 × 38,624.21
  4. Step 4: Simplify right side
    86,010.23x = 4,983,742,004.27
  5. Step 5: Solve for x
    x = 4,983,742,004.27/86,010.23
  6. Step 6: Final answer
    x = 57,943.60

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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.