Home / 51,042.40-70,438.71-28,383.46

Finding the Fourth Proportional to 51,042.40, 70,438.71 and 28,383.46

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Solution

The fourth proportional to 51,042.40, 70,438.71 and 28,383.46 is: 39,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,042.40 : 70,438.71 = 28,383.46 : x
  2. Step 2: Convert to fraction form
    51,042.40/70,438.71 = 28,383.46/x
  3. Step 3: Cross multiply
    51,042.40x = 70,438.71 × 28,383.46
  4. Step 4: Simplify right side
    51,042.40x = 1,999,294,307.74
  5. Step 5: Solve for x
    x = 1,999,294,307.74/51,042.40
  6. Step 6: Final answer
    x = 39,169.28

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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.