Home / 83,749.80-115,574.18-45,509.16

Finding the Fourth Proportional to 83,749.80, 115,574.18 and 45,509.16

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Solution

The fourth proportional to 83,749.80, 115,574.18 and 45,509.16 is: 62,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,749.80 : 115,574.18 = 45,509.16 : x
  2. Step 2: Convert to fraction form
    83,749.80/115,574.18 = 45,509.16/x
  3. Step 3: Cross multiply
    83,749.80x = 115,574.18 × 45,509.16
  4. Step 4: Simplify right side
    83,749.80x = 5,259,683,849.49
  5. Step 5: Solve for x
    x = 5,259,683,849.49/83,749.80
  6. Step 6: Final answer
    x = 62,802.35

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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.