Home / 76,239.48-105,206.58-42,247.08

Finding the Fourth Proportional to 76,239.48, 105,206.58 and 42,247.08

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Solution

The fourth proportional to 76,239.48, 105,206.58 and 42,247.08 is: 58,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,239.48 : 105,206.58 = 42,247.08 : x
  2. Step 2: Convert to fraction form
    76,239.48/105,206.58 = 42,247.08/x
  3. Step 3: Cross multiply
    76,239.48x = 105,206.58 × 42,247.08
  4. Step 4: Simplify right side
    76,239.48x = 4,444,670,801.79
  5. Step 5: Solve for x
    x = 4,444,670,801.79/76,239.48
  6. Step 6: Final answer
    x = 58,298.81

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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.