Home / 51,345.78-70,854.65-28,680.27

Finding the Fourth Proportional to 51,345.78, 70,854.65 and 28,680.27

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Solution

The fourth proportional to 51,345.78, 70,854.65 and 28,680.27 is: 39,577.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.78 : 70,854.65 = 28,680.27 : x
  2. Step 2: Convert to fraction form
    51,345.78/70,854.65 = 28,680.27/x
  3. Step 3: Cross multiply
    51,345.78x = 70,854.65 × 28,680.27
  4. Step 4: Simplify right side
    51,345.78x = 2,032,130,349.35
  5. Step 5: Solve for x
    x = 2,032,130,349.35/51,345.78
  6. Step 6: Final answer
    x = 39,577.36

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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.