Home / 77,531.29-107,004.75-47,334.12

Finding the Fourth Proportional to 77,531.29, 107,004.75 and 47,334.12

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Solution

The fourth proportional to 77,531.29, 107,004.75 and 47,334.12 is: 65,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,531.29 : 107,004.75 = 47,334.12 : x
  2. Step 2: Convert to fraction form
    77,531.29/107,004.75 = 47,334.12/x
  3. Step 3: Cross multiply
    77,531.29x = 107,004.75 × 47,334.12
  4. Step 4: Simplify right side
    77,531.29x = 5,064,975,677.07
  5. Step 5: Solve for x
    x = 5,064,975,677.07/77,531.29
  6. Step 6: Final answer
    x = 65,328.15

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1.5x scale

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.