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Finding the Fourth Proportional to 98,587.47, 147,822.04 and 45,212.58

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Solution

The fourth proportional to 98,587.47, 147,822.04 and 45,212.58 is: 67,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,587.47 : 147,822.04 = 45,212.58 : x
  2. Step 2: Convert to fraction form
    98,587.47/147,822.04 = 45,212.58/x
  3. Step 3: Cross multiply
    98,587.47x = 147,822.04 × 45,212.58
  4. Step 4: Simplify right side
    98,587.47x = 6,683,415,809.26
  5. Step 5: Solve for x
    x = 6,683,415,809.26/98,587.47
  6. Step 6: Final answer
    x = 67,791.74

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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.