Home / 72,706.07-109,038.03-28,322.93

Finding the Fourth Proportional to 72,706.07, 109,038.03 and 28,322.93

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Solution

The fourth proportional to 72,706.07, 109,038.03 and 28,322.93 is: 42,476.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,706.07 : 109,038.03 = 28,322.93 : x
  2. Step 2: Convert to fraction form
    72,706.07/109,038.03 = 28,322.93/x
  3. Step 3: Cross multiply
    72,706.07x = 109,038.03 × 28,322.93
  4. Step 4: Simplify right side
    72,706.07x = 3,088,276,491.03
  5. Step 5: Solve for x
    x = 3,088,276,491.03/72,706.07
  6. Step 6: Final answer
    x = 42,476.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.