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Finding the Fourth Proportional to 94,712, 142,069.08 and 28,150.40

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Solution

The fourth proportional to 94,712, 142,069.08 and 28,150.40 is: 42,225.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,712 : 142,069.08 = 28,150.40 : x
  2. Step 2: Convert to fraction form
    94,712/142,069.08 = 28,150.40/x
  3. Step 3: Cross multiply
    94,712x = 142,069.08 × 28,150.40
  4. Step 4: Simplify right side
    94,712x = 3,999,301,429.63
  5. Step 5: Solve for x
    x = 3,999,301,429.63/94,712
  6. Step 6: Final answer
    x = 42,225.92

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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.