Home / 76,333.12-105,337.14-42,341.44

Finding the Fourth Proportional to 76,333.12, 105,337.14 and 42,341.44

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Solution

The fourth proportional to 76,333.12, 105,337.14 and 42,341.44 is: 58,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,333.12 : 105,337.14 = 42,341.44 : x
  2. Step 2: Convert to fraction form
    76,333.12/105,337.14 = 42,341.44/x
  3. Step 3: Cross multiply
    76,333.12x = 105,337.14 × 42,341.44
  4. Step 4: Simplify right side
    76,333.12x = 4,460,126,193.08
  5. Step 5: Solve for x
    x = 4,460,126,193.08/76,333.12
  6. Step 6: Final answer
    x = 58,429.76

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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.