Home / 76,242.60-105,211.70-42,251.58

Finding the Fourth Proportional to 76,242.60, 105,211.70 and 42,251.58

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Solution

The fourth proportional to 76,242.60, 105,211.70 and 42,251.58 is: 58,305.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,242.60 : 105,211.70 = 42,251.58 : x
  2. Step 2: Convert to fraction form
    76,242.60/105,211.70 = 42,251.58/x
  3. Step 3: Cross multiply
    76,242.60x = 105,211.70 × 42,251.58
  4. Step 4: Simplify right side
    76,242.60x = 4,445,360,559.49
  5. Step 5: Solve for x
    x = 4,445,360,559.49/76,242.60
  6. Step 6: Final answer
    x = 58,305.47

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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.