Home / 82,859.04-114,388.75-64,670.70

Finding the Fourth Proportional to 82,859.04, 114,388.75 and 64,670.70

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Solution

The fourth proportional to 82,859.04, 114,388.75 and 64,670.70 is: 89,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,859.04 : 114,388.75 = 64,670.70 : x
  2. Step 2: Convert to fraction form
    82,859.04/114,388.75 = 64,670.70/x
  3. Step 3: Cross multiply
    82,859.04x = 114,388.75 × 64,670.70
  4. Step 4: Simplify right side
    82,859.04x = 7,397,600,534.63
  5. Step 5: Solve for x
    x = 7,397,600,534.63/82,859.04
  6. Step 6: Final answer
    x = 89,279.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.