Home / 74,421.36-102,701.07-40,429.58

Finding the Fourth Proportional to 74,421.36, 102,701.07 and 40,429.58

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Solution

The fourth proportional to 74,421.36, 102,701.07 and 40,429.58 is: 55,792.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,421.36 : 102,701.07 = 40,429.58 : x
  2. Step 2: Convert to fraction form
    74,421.36/102,701.07 = 40,429.58/x
  3. Step 3: Cross multiply
    74,421.36x = 102,701.07 × 40,429.58
  4. Step 4: Simplify right side
    74,421.36x = 4,152,161,125.65
  5. Step 5: Solve for x
    x = 4,152,161,125.65/74,421.36
  6. Step 6: Final answer
    x = 55,792.60

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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.