Home / 74,860.86-103,303.56-40,862.58

Finding the Fourth Proportional to 74,860.86, 103,303.56 and 40,862.58

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Solution

The fourth proportional to 74,860.86, 103,303.56 and 40,862.58 is: 56,387.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,860.86 : 103,303.56 = 40,862.58 : x
  2. Step 2: Convert to fraction form
    74,860.86/103,303.56 = 40,862.58/x
  3. Step 3: Cross multiply
    74,860.86x = 103,303.56 × 40,862.58
  4. Step 4: Simplify right side
    74,860.86x = 4,221,249,984.78
  5. Step 5: Solve for x
    x = 4,221,249,984.78/74,860.86
  6. Step 6: Final answer
    x = 56,387.94

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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.