Home / 47,138.19-70,758.51-19,077.57

Finding the Fourth Proportional to 47,138.19, 70,758.51 and 19,077.57

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Solution

The fourth proportional to 47,138.19, 70,758.51 and 19,077.57 is: 28,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,138.19 : 70,758.51 = 19,077.57 : x
  2. Step 2: Convert to fraction form
    47,138.19/70,758.51 = 19,077.57/x
  3. Step 3: Cross multiply
    47,138.19x = 70,758.51 × 19,077.57
  4. Step 4: Simplify right side
    47,138.19x = 1,349,900,427.62
  5. Step 5: Solve for x
    x = 1,349,900,427.62/47,138.19
  6. Step 6: Final answer
    x = 28,637.09

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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.