Home / 75,237.97-103,831.77-42,975.40

Finding the Fourth Proportional to 75,237.97, 103,831.77 and 42,975.40

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Solution

The fourth proportional to 75,237.97, 103,831.77 and 42,975.40 is: 59,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,237.97 : 103,831.77 = 42,975.40 : x
  2. Step 2: Convert to fraction form
    75,237.97/103,831.77 = 42,975.40/x
  3. Step 3: Cross multiply
    75,237.97x = 103,831.77 × 42,975.40
  4. Step 4: Simplify right side
    75,237.97x = 4,462,211,848.46
  5. Step 5: Solve for x
    x = 4,462,211,848.46/75,237.97
  6. Step 6: Final answer
    x = 59,307.98

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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.