Home / 76,767.40-105,937.06-42,776.04

Finding the Fourth Proportional to 76,767.40, 105,937.06 and 42,776.04

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Solution

The fourth proportional to 76,767.40, 105,937.06 and 42,776.04 is: 59,029.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,767.40 : 105,937.06 = 42,776.04 : x
  2. Step 2: Convert to fraction form
    76,767.40/105,937.06 = 42,776.04/x
  3. Step 3: Cross multiply
    76,767.40x = 105,937.06 × 42,776.04
  4. Step 4: Simplify right side
    76,767.40x = 4,531,567,916.04
  5. Step 5: Solve for x
    x = 4,531,567,916.04/76,767.40
  6. Step 6: Final answer
    x = 59,029.85

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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.