Home / 51,212.55-70,678.56-28,555.23

Finding the Fourth Proportional to 51,212.55, 70,678.56 and 28,555.23

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Solution

The fourth proportional to 51,212.55, 70,678.56 and 28,555.23 is: 39,409.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,212.55 : 70,678.56 = 28,555.23 : x
  2. Step 2: Convert to fraction form
    51,212.55/70,678.56 = 28,555.23/x
  3. Step 3: Cross multiply
    51,212.55x = 70,678.56 × 28,555.23
  4. Step 4: Simplify right side
    51,212.55x = 2,018,242,536.87
  5. Step 5: Solve for x
    x = 2,018,242,536.87/51,212.55
  6. Step 6: Final answer
    x = 39,409.14

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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.