Home / 74,985.19-103,477.80-40,993.93

Finding the Fourth Proportional to 74,985.19, 103,477.80 and 40,993.93

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Solution

The fourth proportional to 74,985.19, 103,477.80 and 40,993.93 is: 56,570.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,985.19 : 103,477.80 = 40,993.93 : x
  2. Step 2: Convert to fraction form
    74,985.19/103,477.80 = 40,993.93/x
  3. Step 3: Cross multiply
    74,985.19x = 103,477.80 × 40,993.93
  4. Step 4: Simplify right side
    74,985.19x = 4,241,961,689.75
  5. Step 5: Solve for x
    x = 4,241,961,689.75/74,985.19
  6. Step 6: Final answer
    x = 56,570.66

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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.