Home / 74,864.86-103,309.08-40,866.58

Finding the Fourth Proportional to 74,864.86, 103,309.08 and 40,866.58

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Solution

The fourth proportional to 74,864.86, 103,309.08 and 40,866.58 is: 56,393.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,864.86 : 103,309.08 = 40,866.58 : x
  2. Step 2: Convert to fraction form
    74,864.86/103,309.08 = 40,866.58/x
  3. Step 3: Cross multiply
    74,864.86x = 103,309.08 × 40,866.58
  4. Step 4: Simplify right side
    74,864.86x = 4,221,888,782.55
  5. Step 5: Solve for x
    x = 4,221,888,782.55/74,864.86
  6. Step 6: Final answer
    x = 56,393.46

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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.