Home / 53,130.12-73,319.36-29,256.80

Finding the Fourth Proportional to 53,130.12, 73,319.36 and 29,256.80

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Solution

The fourth proportional to 53,130.12, 73,319.36 and 29,256.80 is: 40,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,130.12 : 73,319.36 = 29,256.80 : x
  2. Step 2: Convert to fraction form
    53,130.12/73,319.36 = 29,256.80/x
  3. Step 3: Cross multiply
    53,130.12x = 73,319.36 × 29,256.80
  4. Step 4: Simplify right side
    53,130.12x = 2,145,089,851.65
  5. Step 5: Solve for x
    x = 2,145,089,851.65/53,130.12
  6. Step 6: Final answer
    x = 40,374.27

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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.