Home / 76,285.08-105,279.64-42,304.22

Finding the Fourth Proportional to 76,285.08, 105,279.64 and 42,304.22

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Solution

The fourth proportional to 76,285.08, 105,279.64 and 42,304.22 is: 58,383.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,285.08 : 105,279.64 = 42,304.22 : x
  2. Step 2: Convert to fraction form
    76,285.08/105,279.64 = 42,304.22/x
  3. Step 3: Cross multiply
    76,285.08x = 105,279.64 × 42,304.22
  4. Step 4: Simplify right side
    76,285.08x = 4,453,773,052.08
  5. Step 5: Solve for x
    x = 4,453,773,052.08/76,285.08
  6. Step 6: Final answer
    x = 58,383.28

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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.