Home / 53,430.08-80,193.76-28,491.20

Finding the Fourth Proportional to 53,430.08, 80,193.76 and 28,491.20

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Solution

The fourth proportional to 53,430.08, 80,193.76 and 28,491.20 is: 42,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.08 : 80,193.76 = 28,491.20 : x
  2. Step 2: Convert to fraction form
    53,430.08/80,193.76 = 28,491.20/x
  3. Step 3: Cross multiply
    53,430.08x = 80,193.76 × 28,491.20
  4. Step 4: Simplify right side
    53,430.08x = 2,284,816,454.91
  5. Step 5: Solve for x
    x = 2,284,816,454.91/53,430.08
  6. Step 6: Final answer
    x = 42,762.74

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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.