Home / 86,213.07-129,323.00-30,058.91

Finding the Fourth Proportional to 86,213.07, 129,323.00 and 30,058.91

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Solution

The fourth proportional to 86,213.07, 129,323.00 and 30,058.91 is: 45,089.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,213.07 : 129,323.00 = 30,058.91 : x
  2. Step 2: Convert to fraction form
    86,213.07/129,323.00 = 30,058.91/x
  3. Step 3: Cross multiply
    86,213.07x = 129,323.00 × 30,058.91
  4. Step 4: Simplify right side
    86,213.07x = 3,887,307,621.02
  5. Step 5: Solve for x
    x = 3,887,307,621.02/86,213.07
  6. Step 6: Final answer
    x = 45,089.54

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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.