Home / 66,913.04-100,402.32-47,317.52

Finding the Fourth Proportional to 66,913.04, 100,402.32 and 47,317.52

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Solution

The fourth proportional to 66,913.04, 100,402.32 and 47,317.52 is: 70,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,913.04 : 100,402.32 = 47,317.52 : x
  2. Step 2: Convert to fraction form
    66,913.04/100,402.32 = 47,317.52/x
  3. Step 3: Cross multiply
    66,913.04x = 100,402.32 × 47,317.52
  4. Step 4: Simplify right side
    66,913.04x = 4,750,788,784.65
  5. Step 5: Solve for x
    x = 4,750,788,784.65/66,913.04
  6. Step 6: Final answer
    x = 70,999.45

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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.