Home / 78,962.41-118,500.75-30,938.19

Finding the Fourth Proportional to 78,962.41, 118,500.75 and 30,938.19

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Solution

The fourth proportional to 78,962.41, 118,500.75 and 30,938.19 is: 46,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,962.41 : 118,500.75 = 30,938.19 : x
  2. Step 2: Convert to fraction form
    78,962.41/118,500.75 = 30,938.19/x
  3. Step 3: Cross multiply
    78,962.41x = 118,500.75 × 30,938.19
  4. Step 4: Simplify right side
    78,962.41x = 3,666,198,718.64
  5. Step 5: Solve for x
    x = 3,666,198,718.64/78,962.41
  6. Step 6: Final answer
    x = 46,429.67

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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.