Home / 86,150.43-129,225.65-39,370.50

Finding the Fourth Proportional to 86,150.43, 129,225.65 and 39,370.50

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Solution

The fourth proportional to 86,150.43, 129,225.65 and 39,370.50 is: 59,055.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,150.43 : 129,225.65 = 39,370.50 : x
  2. Step 2: Convert to fraction form
    86,150.43/129,225.65 = 39,370.50/x
  3. Step 3: Cross multiply
    86,150.43x = 129,225.65 × 39,370.50
  4. Step 4: Simplify right side
    86,150.43x = 5,087,678,256.47
  5. Step 5: Solve for x
    x = 5,087,678,256.47/86,150.43
  6. Step 6: Final answer
    x = 59,055.75

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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.