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Finding the Fourth Proportional to 89,894.98, 134,752.55 and 45,387.10

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Solution

The fourth proportional to 89,894.98, 134,752.55 and 45,387.10 is: 68,035.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,894.98 : 134,752.55 = 45,387.10 : x
  2. Step 2: Convert to fraction form
    89,894.98/134,752.55 = 45,387.10/x
  3. Step 3: Cross multiply
    89,894.98x = 134,752.55 × 45,387.10
  4. Step 4: Simplify right side
    89,894.98x = 6,116,026,788.34
  5. Step 5: Solve for x
    x = 6,116,026,788.34/89,894.98
  6. Step 6: Final answer
    x = 68,035.25

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1.5x scale

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.