Home / 30,069.54-45,109.85-10,077.08

Finding the Fourth Proportional to 30,069.54, 45,109.85 and 10,077.08

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Solution

The fourth proportional to 30,069.54, 45,109.85 and 10,077.08 is: 15,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,069.54 : 45,109.85 = 10,077.08 : x
  2. Step 2: Convert to fraction form
    30,069.54/45,109.85 = 10,077.08/x
  3. Step 3: Cross multiply
    30,069.54x = 45,109.85 × 10,077.08
  4. Step 4: Simplify right side
    30,069.54x = 454,575,291.30
  5. Step 5: Solve for x
    x = 454,575,291.30/30,069.54
  6. Step 6: Final answer
    x = 15,117.47

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1.5x scale

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.