Home / 78,741.04-118,041.61-30,698.57

Finding the Fourth Proportional to 78,741.04, 118,041.61 and 30,698.57

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Solution

The fourth proportional to 78,741.04, 118,041.61 and 30,698.57 is: 46,020.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,741.04 : 118,041.61 = 30,698.57 : x
  2. Step 2: Convert to fraction form
    78,741.04/118,041.61 = 30,698.57/x
  3. Step 3: Cross multiply
    78,741.04x = 118,041.61 × 30,698.57
  4. Step 4: Simplify right side
    78,741.04x = 3,623,708,627.50
  5. Step 5: Solve for x
    x = 3,623,708,627.50/78,741.04
  6. Step 6: Final answer
    x = 46,020.58

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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.