Home / 74,867.60-103,312.86-40,869.32

Finding the Fourth Proportional to 74,867.60, 103,312.86 and 40,869.32

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Solution

The fourth proportional to 74,867.60, 103,312.86 and 40,869.32 is: 56,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,867.60 : 103,312.86 = 40,869.32 : x
  2. Step 2: Convert to fraction form
    74,867.60/103,312.86 = 40,869.32/x
  3. Step 3: Cross multiply
    74,867.60x = 103,312.86 × 40,869.32
  4. Step 4: Simplify right side
    74,867.60x = 4,222,326,335.46
  5. Step 5: Solve for x
    x = 4,222,326,335.46/74,867.60
  6. Step 6: Final answer
    x = 56,397.24

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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.