Home / 85,689.04-118,227.64-52,131.28

Finding the Fourth Proportional to 85,689.04, 118,227.64 and 52,131.28

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Solution

The fourth proportional to 85,689.04, 118,227.64 and 52,131.28 is: 71,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,689.04 : 118,227.64 = 52,131.28 : x
  2. Step 2: Convert to fraction form
    85,689.04/118,227.64 = 52,131.28/x
  3. Step 3: Cross multiply
    85,689.04x = 118,227.64 × 52,131.28
  4. Step 4: Simplify right side
    85,689.04x = 6,163,358,204.58
  5. Step 5: Solve for x
    x = 6,163,358,204.58/85,689.04
  6. Step 6: Final answer
    x = 71,927.03

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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.