Home / 76,336.32-105,345.80-42,343.69

Finding the Fourth Proportional to 76,336.32, 105,345.80 and 42,343.69

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Solution

The fourth proportional to 76,336.32, 105,345.80 and 42,343.69 is: 58,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,336.32 : 105,345.80 = 42,343.69 : x
  2. Step 2: Convert to fraction form
    76,336.32/105,345.80 = 42,343.69/x
  3. Step 3: Cross multiply
    76,336.32x = 105,345.80 × 42,343.69
  4. Step 4: Simplify right side
    76,336.32x = 4,460,729,898.00
  5. Step 5: Solve for x
    x = 4,460,729,898.00/76,336.32
  6. Step 6: Final answer
    x = 58,435.22

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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.