Home / 71,285.76-98,376.40-39,457.62

Finding the Fourth Proportional to 71,285.76, 98,376.40 and 39,457.62

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Solution

The fourth proportional to 71,285.76, 98,376.40 and 39,457.62 is: 54,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,285.76 : 98,376.40 = 39,457.62 : x
  2. Step 2: Convert to fraction form
    71,285.76/98,376.40 = 39,457.62/x
  3. Step 3: Cross multiply
    71,285.76x = 98,376.40 × 39,457.62
  4. Step 4: Simplify right side
    71,285.76x = 3,881,698,608.17
  5. Step 5: Solve for x
    x = 3,881,698,608.17/71,285.76
  6. Step 6: Final answer
    x = 54,452.65

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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.