Home / 72,980.04-109,595.13-45,065.26

Finding the Fourth Proportional to 72,980.04, 109,595.13 and 45,065.26

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Solution

The fourth proportional to 72,980.04, 109,595.13 and 45,065.26 is: 67,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,980.04 : 109,595.13 = 45,065.26 : x
  2. Step 2: Convert to fraction form
    72,980.04/109,595.13 = 45,065.26/x
  3. Step 3: Cross multiply
    72,980.04x = 109,595.13 × 45,065.26
  4. Step 4: Simplify right side
    72,980.04x = 4,938,933,028.18
  5. Step 5: Solve for x
    x = 4,938,933,028.18/72,980.04
  6. Step 6: Final answer
    x = 67,675.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.