Home / 76,814.33-106,011.64-42,828.35

Finding the Fourth Proportional to 76,814.33, 106,011.64 and 42,828.35

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Solution

The fourth proportional to 76,814.33, 106,011.64 and 42,828.35 is: 59,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,814.33 : 106,011.64 = 42,828.35 : x
  2. Step 2: Convert to fraction form
    76,814.33/106,011.64 = 42,828.35/x
  3. Step 3: Cross multiply
    76,814.33x = 106,011.64 × 42,828.35
  4. Step 4: Simplify right side
    76,814.33x = 4,540,302,904.56
  5. Step 5: Solve for x
    x = 4,540,302,904.56/76,814.33
  6. Step 6: Final answer
    x = 59,107.50

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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.