Home / 72,741.53-100,368.26-42,521.01

Finding the Fourth Proportional to 72,741.53, 100,368.26 and 42,521.01

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Solution

The fourth proportional to 72,741.53, 100,368.26 and 42,521.01 is: 58,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,741.53 : 100,368.26 = 42,521.01 : x
  2. Step 2: Convert to fraction form
    72,741.53/100,368.26 = 42,521.01/x
  3. Step 3: Cross multiply
    72,741.53x = 100,368.26 × 42,521.01
  4. Step 4: Simplify right side
    72,741.53x = 4,267,759,787.14
  5. Step 5: Solve for x
    x = 4,267,759,787.14/72,741.53
  6. Step 6: Final answer
    x = 58,670.20

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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.