Home / 74,686.45-103,066.05-40,695.34

Finding the Fourth Proportional to 74,686.45, 103,066.05 and 40,695.34

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Solution

The fourth proportional to 74,686.45, 103,066.05 and 40,695.34 is: 56,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,686.45 : 103,066.05 = 40,695.34 : x
  2. Step 2: Convert to fraction form
    74,686.45/103,066.05 = 40,695.34/x
  3. Step 3: Cross multiply
    74,686.45x = 103,066.05 × 40,695.34
  4. Step 4: Simplify right side
    74,686.45x = 4,194,307,947.21
  5. Step 5: Solve for x
    x = 4,194,307,947.21/74,686.45
  6. Step 6: Final answer
    x = 56,158.89

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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.