Home / 310,626.22-465,887.43-86,009.36

Finding the Fourth Proportional to 310,626.22, 465,887.43 and 86,009.36

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Solution

The fourth proportional to 310,626.22, 465,887.43 and 86,009.36 is: 128,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,626.22 : 465,887.43 = 86,009.36 : x
  2. Step 2: Convert to fraction form
    310,626.22/465,887.43 = 86,009.36/x
  3. Step 3: Cross multiply
    310,626.22x = 465,887.43 × 86,009.36
  4. Step 4: Simplify right side
    310,626.22x = 40,070,679,686.34
  5. Step 5: Solve for x
    x = 40,070,679,686.34/310,626.22
  6. Step 6: Final answer
    x = 128,999.67

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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.