Home / 30,126.67-45,180.89-9,061.12

Finding the Fourth Proportional to 30,126.67, 45,180.89 and 9,061.12

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Solution

The fourth proportional to 30,126.67, 45,180.89 and 9,061.12 is: 13,588.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,126.67 : 45,180.89 = 9,061.12 : x
  2. Step 2: Convert to fraction form
    30,126.67/45,180.89 = 9,061.12/x
  3. Step 3: Cross multiply
    30,126.67x = 45,180.89 × 9,061.12
  4. Step 4: Simplify right side
    30,126.67x = 409,389,307.74
  5. Step 5: Solve for x
    x = 409,389,307.74/30,126.67
  6. Step 6: Final answer
    x = 13,588.93

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1.5x scale

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.