Home / 85,434.56-117,895.93-47,708.00

Finding the Fourth Proportional to 85,434.56, 117,895.93 and 47,708.00

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Solution

The fourth proportional to 85,434.56, 117,895.93 and 47,708.00 is: 65,834.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,434.56 : 117,895.93 = 47,708.00 : x
  2. Step 2: Convert to fraction form
    85,434.56/117,895.93 = 47,708.00/x
  3. Step 3: Cross multiply
    85,434.56x = 117,895.93 × 47,708.00
  4. Step 4: Simplify right side
    85,434.56x = 5,624,578,319.69
  5. Step 5: Solve for x
    x = 5,624,578,319.69/85,434.56
  6. Step 6: Final answer
    x = 65,834.93

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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.