Home / 98,526.78-147,812.04-28,400.63

Finding the Fourth Proportional to 98,526.78, 147,812.04 and 28,400.63

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Solution

The fourth proportional to 98,526.78, 147,812.04 and 28,400.63 is: 42,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,526.78 : 147,812.04 = 28,400.63 : x
  2. Step 2: Convert to fraction form
    98,526.78/147,812.04 = 28,400.63/x
  3. Step 3: Cross multiply
    98,526.78x = 147,812.04 × 28,400.63
  4. Step 4: Simplify right side
    98,526.78x = 4,197,954,318.53
  5. Step 5: Solve for x
    x = 4,197,954,318.53/98,526.78
  6. Step 6: Final answer
    x = 42,607.24

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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.