Home / 58,218.51-87,319.26-28,628.40

Finding the Fourth Proportional to 58,218.51, 87,319.26 and 28,628.40

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Solution

The fourth proportional to 58,218.51, 87,319.26 and 28,628.40 is: 42,938.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,218.51 : 87,319.26 = 28,628.40 : x
  2. Step 2: Convert to fraction form
    58,218.51/87,319.26 = 28,628.40/x
  3. Step 3: Cross multiply
    58,218.51x = 87,319.26 × 28,628.40
  4. Step 4: Simplify right side
    58,218.51x = 2,499,810,702.98
  5. Step 5: Solve for x
    x = 2,499,810,702.98/58,218.51
  6. Step 6: Final answer
    x = 42,938.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.