Home / 91,938.62-126,859.03-56,140.16

Finding the Fourth Proportional to 91,938.62, 126,859.03 and 56,140.16

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Solution

The fourth proportional to 91,938.62, 126,859.03 and 56,140.16 is: 77,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,938.62 : 126,859.03 = 56,140.16 : x
  2. Step 2: Convert to fraction form
    91,938.62/126,859.03 = 56,140.16/x
  3. Step 3: Cross multiply
    91,938.62x = 126,859.03 × 56,140.16
  4. Step 4: Simplify right side
    91,938.62x = 7,121,885,467.00
  5. Step 5: Solve for x
    x = 7,121,885,467.00/91,938.62
  6. Step 6: Final answer
    x = 77,463.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.