Home / 75,071.24-103,683.35-51,156.40

Finding the Fourth Proportional to 75,071.24, 103,683.35 and 51,156.40

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Solution

The fourth proportional to 75,071.24, 103,683.35 and 51,156.40 is: 70,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,071.24 : 103,683.35 = 51,156.40 : x
  2. Step 2: Convert to fraction form
    75,071.24/103,683.35 = 51,156.40/x
  3. Step 3: Cross multiply
    75,071.24x = 103,683.35 × 51,156.40
  4. Step 4: Simplify right side
    75,071.24x = 5,304,066,925.94
  5. Step 5: Solve for x
    x = 5,304,066,925.94/75,071.24
  6. Step 6: Final answer
    x = 70,653.78

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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.