Home / 98,370.81-147,515.48-30,880.29

Finding the Fourth Proportional to 98,370.81, 147,515.48 and 30,880.29

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Solution

The fourth proportional to 98,370.81, 147,515.48 and 30,880.29 is: 46,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,370.81 : 147,515.48 = 30,880.29 : x
  2. Step 2: Convert to fraction form
    98,370.81/147,515.48 = 30,880.29/x
  3. Step 3: Cross multiply
    98,370.81x = 147,515.48 × 30,880.29
  4. Step 4: Simplify right side
    98,370.81x = 4,555,320,647.49
  5. Step 5: Solve for x
    x = 4,555,320,647.49/98,370.81
  6. Step 6: Final answer
    x = 46,307.65

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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.