Home / 62,430.41-86,129.69-39,765.35

Finding the Fourth Proportional to 62,430.41, 86,129.69 and 39,765.35

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Solution

The fourth proportional to 62,430.41, 86,129.69 and 39,765.35 is: 54,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,430.41 : 86,129.69 = 39,765.35 : x
  2. Step 2: Convert to fraction form
    62,430.41/86,129.69 = 39,765.35/x
  3. Step 3: Cross multiply
    62,430.41x = 86,129.69 × 39,765.35
  4. Step 4: Simplify right side
    62,430.41x = 3,424,976,638.77
  5. Step 5: Solve for x
    x = 3,424,976,638.77/62,430.41
  6. Step 6: Final answer
    x = 54,860.71

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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.