Home / 86,729.12-119,542.98-58,038.56

Finding the Fourth Proportional to 86,729.12, 119,542.98 and 58,038.56

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Solution

The fourth proportional to 86,729.12, 119,542.98 and 58,038.56 is: 79,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,729.12 : 119,542.98 = 58,038.56 : x
  2. Step 2: Convert to fraction form
    86,729.12/119,542.98 = 58,038.56/x
  3. Step 3: Cross multiply
    86,729.12x = 119,542.98 × 58,038.56
  4. Step 4: Simplify right side
    86,729.12x = 6,938,102,417.31
  5. Step 5: Solve for x
    x = 6,938,102,417.31/86,729.12
  6. Step 6: Final answer
    x = 79,997.38

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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.