Home / 86,534.64-129,712.86-62,783.01

Finding the Fourth Proportional to 86,534.64, 129,712.86 and 62,783.01

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Solution

The fourth proportional to 86,534.64, 129,712.86 and 62,783.01 is: 94,109.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,534.64 : 129,712.86 = 62,783.01 : x
  2. Step 2: Convert to fraction form
    86,534.64/129,712.86 = 62,783.01/x
  3. Step 3: Cross multiply
    86,534.64x = 129,712.86 × 62,783.01
  4. Step 4: Simplify right side
    86,534.64x = 8,143,763,786.51
  5. Step 5: Solve for x
    x = 8,143,763,786.51/86,534.64
  6. Step 6: Final answer
    x = 94,109.87

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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.