Home / 85,012.66-117,131.43-56,283.58

Finding the Fourth Proportional to 85,012.66, 117,131.43 and 56,283.58

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Solution

The fourth proportional to 85,012.66, 117,131.43 and 56,283.58 is: 77,548.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.66 : 117,131.43 = 56,283.58 : x
  2. Step 2: Convert to fraction form
    85,012.66/117,131.43 = 56,283.58/x
  3. Step 3: Cross multiply
    85,012.66x = 117,131.43 × 56,283.58
  4. Step 4: Simplify right side
    85,012.66x = 6,592,576,210.92
  5. Step 5: Solve for x
    x = 6,592,576,210.92/85,012.66
  6. Step 6: Final answer
    x = 77,548.17

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1.5x scale

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.