Home / 51,434.20-70,985.73-28,774.45

Finding the Fourth Proportional to 51,434.20, 70,985.73 and 28,774.45

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Solution

The fourth proportional to 51,434.20, 70,985.73 and 28,774.45 is: 39,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,434.20 : 70,985.73 = 28,774.45 : x
  2. Step 2: Convert to fraction form
    51,434.20/70,985.73 = 28,774.45/x
  3. Step 3: Cross multiply
    51,434.20x = 70,985.73 × 28,774.45
  4. Step 4: Simplify right side
    51,434.20x = 2,042,575,338.60
  5. Step 5: Solve for x
    x = 2,042,575,338.60/51,434.20
  6. Step 6: Final answer
    x = 39,712.40

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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.