Home / 61,142.06-84,340.20-38,445.08

Finding the Fourth Proportional to 61,142.06, 84,340.20 and 38,445.08

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Solution

The fourth proportional to 61,142.06, 84,340.20 and 38,445.08 is: 53,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,142.06 : 84,340.20 = 38,445.08 : x
  2. Step 2: Convert to fraction form
    61,142.06/84,340.20 = 38,445.08/x
  3. Step 3: Cross multiply
    61,142.06x = 84,340.20 × 38,445.08
  4. Step 4: Simplify right side
    61,142.06x = 3,242,465,736.22
  5. Step 5: Solve for x
    x = 3,242,465,736.22/61,142.06
  6. Step 6: Final answer
    x = 53,031.67

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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.