Home / 78,703.03-108,607.01-42,892.26

Finding the Fourth Proportional to 78,703.03, 108,607.01 and 42,892.26

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Solution

The fourth proportional to 78,703.03, 108,607.01 and 42,892.26 is: 59,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,703.03 : 108,607.01 = 42,892.26 : x
  2. Step 2: Convert to fraction form
    78,703.03/108,607.01 = 42,892.26/x
  3. Step 3: Cross multiply
    78,703.03x = 108,607.01 × 42,892.26
  4. Step 4: Simplify right side
    78,703.03x = 4,658,400,110.74
  5. Step 5: Solve for x
    x = 4,658,400,110.74/78,703.03
  6. Step 6: Final answer
    x = 59,189.59

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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.