Home / 76,271.49-105,249.65-42,731.01

Finding the Fourth Proportional to 76,271.49, 105,249.65 and 42,731.01

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Solution

The fourth proportional to 76,271.49, 105,249.65 and 42,731.01 is: 58,965.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,271.49 : 105,249.65 = 42,731.01 : x
  2. Step 2: Convert to fraction form
    76,271.49/105,249.65 = 42,731.01/x
  3. Step 3: Cross multiply
    76,271.49x = 105,249.65 × 42,731.01
  4. Step 4: Simplify right side
    76,271.49x = 4,497,423,632.99
  5. Step 5: Solve for x
    x = 4,497,423,632.99/76,271.49
  6. Step 6: Final answer
    x = 58,965.99

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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.