Home / 45,642.34-62,987.52-28,644.76

Finding the Fourth Proportional to 45,642.34, 62,987.52 and 28,644.76

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Solution

The fourth proportional to 45,642.34, 62,987.52 and 28,644.76 is: 39,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,642.34 : 62,987.52 = 28,644.76 : x
  2. Step 2: Convert to fraction form
    45,642.34/62,987.52 = 28,644.76/x
  3. Step 3: Cross multiply
    45,642.34x = 62,987.52 × 28,644.76
  4. Step 4: Simplify right side
    45,642.34x = 1,804,262,393.40
  5. Step 5: Solve for x
    x = 1,804,262,393.40/45,642.34
  6. Step 6: Final answer
    x = 39,530.45

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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.