Home / 78,804.23-108,750.21-42,995.04

Finding the Fourth Proportional to 78,804.23, 108,750.21 and 42,995.04

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Solution

The fourth proportional to 78,804.23, 108,750.21 and 42,995.04 is: 59,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804.23 : 108,750.21 = 42,995.04 : x
  2. Step 2: Convert to fraction form
    78,804.23/108,750.21 = 42,995.04/x
  3. Step 3: Cross multiply
    78,804.23x = 108,750.21 × 42,995.04
  4. Step 4: Simplify right side
    78,804.23x = 4,675,719,628.96
  5. Step 5: Solve for x
    x = 4,675,719,628.96/78,804.23
  6. Step 6: Final answer
    x = 59,333.36

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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.