Home / 86,295.02-129,457.29-39,551.90

Finding the Fourth Proportional to 86,295.02, 129,457.29 and 39,551.90

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Solution

The fourth proportional to 86,295.02, 129,457.29 and 39,551.90 is: 59,334.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,295.02 : 129,457.29 = 39,551.90 : x
  2. Step 2: Convert to fraction form
    86,295.02/129,457.29 = 39,551.90/x
  3. Step 3: Cross multiply
    86,295.02x = 129,457.29 × 39,551.90
  4. Step 4: Simplify right side
    86,295.02x = 5,120,281,788.35
  5. Step 5: Solve for x
    x = 5,120,281,788.35/86,295.02
  6. Step 6: Final answer
    x = 59,334.62

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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.