Home / 76,297.60-105,296.08-42,309.34

Finding the Fourth Proportional to 76,297.60, 105,296.08 and 42,309.34

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Solution

The fourth proportional to 76,297.60, 105,296.08 and 42,309.34 is: 58,389.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,297.60 : 105,296.08 = 42,309.34 : x
  2. Step 2: Convert to fraction form
    76,297.60/105,296.08 = 42,309.34/x
  3. Step 3: Cross multiply
    76,297.60x = 105,296.08 × 42,309.34
  4. Step 4: Simplify right side
    76,297.60x = 4,455,007,240.71
  5. Step 5: Solve for x
    x = 4,455,007,240.71/76,297.60
  6. Step 6: Final answer
    x = 58,389.88

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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.