Home / 74,862.60-103,305.96-40,864.32

Finding the Fourth Proportional to 74,862.60, 103,305.96 and 40,864.32

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Solution

The fourth proportional to 74,862.60, 103,305.96 and 40,864.32 is: 56,390.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862.60 : 103,305.96 = 40,864.32 : x
  2. Step 2: Convert to fraction form
    74,862.60/103,305.96 = 40,864.32/x
  3. Step 3: Cross multiply
    74,862.60x = 103,305.96 × 40,864.32
  4. Step 4: Simplify right side
    74,862.60x = 4,221,527,807.35
  5. Step 5: Solve for x
    x = 4,221,527,807.35/74,862.60
  6. Step 6: Final answer
    x = 56,390.34

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1.5x scale

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.