Home / 85,505.04-117,996.24-47,779.32

Finding the Fourth Proportional to 85,505.04, 117,996.24 and 47,779.32

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Solution

The fourth proportional to 85,505.04, 117,996.24 and 47,779.32 is: 65,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,505.04 : 117,996.24 = 47,779.32 : x
  2. Step 2: Convert to fraction form
    85,505.04/117,996.24 = 47,779.32/x
  3. Step 3: Cross multiply
    85,505.04x = 117,996.24 × 47,779.32
  4. Step 4: Simplify right side
    85,505.04x = 5,637,780,109.76
  5. Step 5: Solve for x
    x = 5,637,780,109.76/85,505.04
  6. Step 6: Final answer
    x = 65,935.06

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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.