Home / 74,161.12-102,352.08-42,322.72

Finding the Fourth Proportional to 74,161.12, 102,352.08 and 42,322.72

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Solution

The fourth proportional to 74,161.12, 102,352.08 and 42,322.72 is: 58,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,161.12 : 102,352.08 = 42,322.72 : x
  2. Step 2: Convert to fraction form
    74,161.12/102,352.08 = 42,322.72/x
  3. Step 3: Cross multiply
    74,161.12x = 102,352.08 × 42,322.72
  4. Step 4: Simplify right side
    74,161.12x = 4,331,818,423.26
  5. Step 5: Solve for x
    x = 4,331,818,423.26/74,161.12
  6. Step 6: Final answer
    x = 58,410.91

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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.