Home / 86,374.93-129,269.77-53,116.06

Finding the Fourth Proportional to 86,374.93, 129,269.77 and 53,116.06

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Solution

The fourth proportional to 86,374.93, 129,269.77 and 53,116.06 is: 79,494.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,374.93 : 129,269.77 = 53,116.06 : x
  2. Step 2: Convert to fraction form
    86,374.93/129,269.77 = 53,116.06/x
  3. Step 3: Cross multiply
    86,374.93x = 129,269.77 × 53,116.06
  4. Step 4: Simplify right side
    86,374.93x = 6,866,300,859.51
  5. Step 5: Solve for x
    x = 6,866,300,859.51/86,374.93
  6. Step 6: Final answer
    x = 79,494.14

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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.