Home / 85,947.58-128,927.58-35,977.42

Finding the Fourth Proportional to 85,947.58, 128,927.58 and 35,977.42

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Solution

The fourth proportional to 85,947.58, 128,927.58 and 35,977.42 is: 53,968.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,947.58 : 128,927.58 = 35,977.42 : x
  2. Step 2: Convert to fraction form
    85,947.58/128,927.58 = 35,977.42/x
  3. Step 3: Cross multiply
    85,947.58x = 128,927.58 × 35,977.42
  4. Step 4: Simplify right side
    85,947.58x = 4,638,481,695.24
  5. Step 5: Solve for x
    x = 4,638,481,695.24/85,947.58
  6. Step 6: Final answer
    x = 53,968.73

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1.5x scale

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.