Home / 53,430.76-80,291.54-28,488.43

Finding the Fourth Proportional to 53,430.76, 80,291.54 and 28,488.43

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Solution

The fourth proportional to 53,430.76, 80,291.54 and 28,488.43 is: 42,810.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.76 : 80,291.54 = 28,488.43 : x
  2. Step 2: Convert to fraction form
    53,430.76/80,291.54 = 28,488.43/x
  3. Step 3: Cross multiply
    53,430.76x = 80,291.54 × 28,488.43
  4. Step 4: Simplify right side
    53,430.76x = 2,287,379,916.88
  5. Step 5: Solve for x
    x = 2,287,379,916.88/53,430.76
  6. Step 6: Final answer
    x = 42,810.17

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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.