Home / 84,262.50-126,430.65-39,920.94

Finding the Fourth Proportional to 84,262.50, 126,430.65 and 39,920.94

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Solution

The fourth proportional to 84,262.50, 126,430.65 and 39,920.94 is: 59,898.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,262.50 : 126,430.65 = 39,920.94 : x
  2. Step 2: Convert to fraction form
    84,262.50/126,430.65 = 39,920.94/x
  3. Step 3: Cross multiply
    84,262.50x = 126,430.65 × 39,920.94
  4. Step 4: Simplify right side
    84,262.50x = 5,047,230,392.81
  5. Step 5: Solve for x
    x = 5,047,230,392.81/84,262.50
  6. Step 6: Final answer
    x = 59,898.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.