Home / 80,980.09-111,703.53-52,254.79

Finding the Fourth Proportional to 80,980.09, 111,703.53 and 52,254.79

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Solution

The fourth proportional to 80,980.09, 111,703.53 and 52,254.79 is: 72,080.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,980.09 : 111,703.53 = 52,254.79 : x
  2. Step 2: Convert to fraction form
    80,980.09/111,703.53 = 52,254.79/x
  3. Step 3: Cross multiply
    80,980.09x = 111,703.53 × 52,254.79
  4. Step 4: Simplify right side
    80,980.09x = 5,837,044,502.41
  5. Step 5: Solve for x
    x = 5,837,044,502.41/80,980.09
  6. Step 6: Final answer
    x = 72,080.00

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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.