Home / 86,453.31-129,570.87-46,372.89

Finding the Fourth Proportional to 86,453.31, 129,570.87 and 46,372.89

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Solution

The fourth proportional to 86,453.31, 129,570.87 and 46,372.89 is: 69,500.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,453.31 : 129,570.87 = 46,372.89 : x
  2. Step 2: Convert to fraction form
    86,453.31/129,570.87 = 46,372.89/x
  3. Step 3: Cross multiply
    86,453.31x = 129,570.87 × 46,372.89
  4. Step 4: Simplify right side
    86,453.31x = 6,008,575,701.71
  5. Step 5: Solve for x
    x = 6,008,575,701.71/86,453.31
  6. Step 6: Final answer
    x = 69,500.82

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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.