Home / 86,056.43-129,040.07-38,630.67

Finding the Fourth Proportional to 86,056.43, 129,040.07 and 38,630.67

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Solution

The fourth proportional to 86,056.43, 129,040.07 and 38,630.67 is: 57,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,056.43 : 129,040.07 = 38,630.67 : x
  2. Step 2: Convert to fraction form
    86,056.43/129,040.07 = 38,630.67/x
  3. Step 3: Cross multiply
    86,056.43x = 129,040.07 × 38,630.67
  4. Step 4: Simplify right side
    86,056.43x = 4,984,904,167.79
  5. Step 5: Solve for x
    x = 4,984,904,167.79/86,056.43
  6. Step 6: Final answer
    x = 57,926.00

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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.