Home / 86,985.56-130,256.80-57,313.46

Finding the Fourth Proportional to 86,985.56, 130,256.80 and 57,313.46

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Solution

The fourth proportional to 86,985.56, 130,256.80 and 57,313.46 is: 85,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,985.56 : 130,256.80 = 57,313.46 : x
  2. Step 2: Convert to fraction form
    86,985.56/130,256.80 = 57,313.46/x
  3. Step 3: Cross multiply
    86,985.56x = 130,256.80 × 57,313.46
  4. Step 4: Simplify right side
    86,985.56x = 7,465,467,896.53
  5. Step 5: Solve for x
    x = 7,465,467,896.53/86,985.56
  6. Step 6: Final answer
    x = 85,824.22

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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.