Home / 74,426.60-102,709.28-40,435.40

Finding the Fourth Proportional to 74,426.60, 102,709.28 and 40,435.40

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Solution

The fourth proportional to 74,426.60, 102,709.28 and 40,435.40 is: 55,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,426.60 : 102,709.28 = 40,435.40 : x
  2. Step 2: Convert to fraction form
    74,426.60/102,709.28 = 40,435.40/x
  3. Step 3: Cross multiply
    74,426.60x = 102,709.28 × 40,435.40
  4. Step 4: Simplify right side
    74,426.60x = 4,153,090,820.51
  5. Step 5: Solve for x
    x = 4,153,090,820.51/74,426.60
  6. Step 6: Final answer
    x = 55,801.16

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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.