Home / 86,820.48-130,224.96-51,976.32

Finding the Fourth Proportional to 86,820.48, 130,224.96 and 51,976.32

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Solution

The fourth proportional to 86,820.48, 130,224.96 and 51,976.32 is: 77,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,820.48 : 130,224.96 = 51,976.32 : x
  2. Step 2: Convert to fraction form
    86,820.48/130,224.96 = 51,976.32/x
  3. Step 3: Cross multiply
    86,820.48x = 130,224.96 × 51,976.32
  4. Step 4: Simplify right side
    86,820.48x = 6,768,614,192.95
  5. Step 5: Solve for x
    x = 6,768,614,192.95/86,820.48
  6. Step 6: Final answer
    x = 77,961.03

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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.