Home / 76,701.12-105,844.68-42,710.82

Finding the Fourth Proportional to 76,701.12, 105,844.68 and 42,710.82

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Solution

The fourth proportional to 76,701.12, 105,844.68 and 42,710.82 is: 58,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,701.12 : 105,844.68 = 42,710.82 : x
  2. Step 2: Convert to fraction form
    76,701.12/105,844.68 = 42,710.82/x
  3. Step 3: Cross multiply
    76,701.12x = 105,844.68 × 42,710.82
  4. Step 4: Simplify right side
    76,701.12x = 4,520,713,075.44
  5. Step 5: Solve for x
    x = 4,520,713,075.44/76,701.12
  6. Step 6: Final answer
    x = 58,939.34

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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.