Home / 76,283.15-105,276.96-42,302.28

Finding the Fourth Proportional to 76,283.15, 105,276.96 and 42,302.28

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Solution

The fourth proportional to 76,283.15, 105,276.96 and 42,302.28 is: 58,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,283.15 : 105,276.96 = 42,302.28 : x
  2. Step 2: Convert to fraction form
    76,283.15/105,276.96 = 42,302.28/x
  3. Step 3: Cross multiply
    76,283.15x = 105,276.96 × 42,302.28
  4. Step 4: Simplify right side
    76,283.15x = 4,453,455,439.47
  5. Step 5: Solve for x
    x = 4,453,455,439.47/76,283.15
  6. Step 6: Final answer
    x = 58,380.59

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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.