Home / 85,898.50-118,539.93-48,172.75

Finding the Fourth Proportional to 85,898.50, 118,539.93 and 48,172.75

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Solution

The fourth proportional to 85,898.50, 118,539.93 and 48,172.75 is: 66,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,898.50 : 118,539.93 = 48,172.75 : x
  2. Step 2: Convert to fraction form
    85,898.50/118,539.93 = 48,172.75/x
  3. Step 3: Cross multiply
    85,898.50x = 118,539.93 × 48,172.75
  4. Step 4: Simplify right side
    85,898.50x = 5,710,394,412.91
  5. Step 5: Solve for x
    x = 5,710,394,412.91/85,898.50
  6. Step 6: Final answer
    x = 66,478.40

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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.