Home / 85,434.51-117,901.40-47,708.76

Finding the Fourth Proportional to 85,434.51, 117,901.40 and 47,708.76

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Solution

The fourth proportional to 85,434.51, 117,901.40 and 47,708.76 is: 65,839.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,434.51 : 117,901.40 = 47,708.76 : x
  2. Step 2: Convert to fraction form
    85,434.51/117,901.40 = 47,708.76/x
  3. Step 3: Cross multiply
    85,434.51x = 117,901.40 × 47,708.76
  4. Step 4: Simplify right side
    85,434.51x = 5,624,929,357.72
  5. Step 5: Solve for x
    x = 5,624,929,357.72/85,434.51
  6. Step 6: Final answer
    x = 65,839.08

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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.