Home / 79,304.51-109,430.14-45,315.20

Finding the Fourth Proportional to 79,304.51, 109,430.14 and 45,315.20

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Solution

The fourth proportional to 79,304.51, 109,430.14 and 45,315.20 is: 62,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,304.51 : 109,430.14 = 45,315.20 : x
  2. Step 2: Convert to fraction form
    79,304.51/109,430.14 = 45,315.20/x
  3. Step 3: Cross multiply
    79,304.51x = 109,430.14 × 45,315.20
  4. Step 4: Simplify right side
    79,304.51x = 4,958,849,010.35
  5. Step 5: Solve for x
    x = 4,958,849,010.35/79,304.51
  6. Step 6: Final answer
    x = 62,529.22

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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.