Home / 85,239.31-117,631.06-47,000.23

Finding the Fourth Proportional to 85,239.31, 117,631.06 and 47,000.23

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Solution

The fourth proportional to 85,239.31, 117,631.06 and 47,000.23 is: 64,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,239.31 : 117,631.06 = 47,000.23 : x
  2. Step 2: Convert to fraction form
    85,239.31/117,631.06 = 47,000.23/x
  3. Step 3: Cross multiply
    85,239.31x = 117,631.06 × 47,000.23
  4. Step 4: Simplify right side
    85,239.31x = 5,528,686,875.14
  5. Step 5: Solve for x
    x = 5,528,686,875.14/85,239.31
  6. Step 6: Final answer
    x = 64,860.77

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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.