Home / 85,532.28-118,038.15-47,806.50

Finding the Fourth Proportional to 85,532.28, 118,038.15 and 47,806.50

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Solution

The fourth proportional to 85,532.28, 118,038.15 and 47,806.50 is: 65,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532.28 : 118,038.15 = 47,806.50 : x
  2. Step 2: Convert to fraction form
    85,532.28/118,038.15 = 47,806.50/x
  3. Step 3: Cross multiply
    85,532.28x = 118,038.15 × 47,806.50
  4. Step 4: Simplify right side
    85,532.28x = 5,642,990,817.98
  5. Step 5: Solve for x
    x = 5,642,990,817.98/85,532.28
  6. Step 6: Final answer
    x = 65,974.98

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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.