Home / 86,485.77-119,289.02-56,215.26

Finding the Fourth Proportional to 86,485.77, 119,289.02 and 56,215.26

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Solution

The fourth proportional to 86,485.77, 119,289.02 and 56,215.26 is: 77,537.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,485.77 : 119,289.02 = 56,215.26 : x
  2. Step 2: Convert to fraction form
    86,485.77/119,289.02 = 56,215.26/x
  3. Step 3: Cross multiply
    86,485.77x = 119,289.02 × 56,215.26
  4. Step 4: Simplify right side
    86,485.77x = 6,705,862,818.54
  5. Step 5: Solve for x
    x = 6,705,862,818.54/86,485.77
  6. Step 6: Final answer
    x = 77,537.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.