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Finding the Fourth Proportional to 89,572.98, 134,411.40 and 45,203.20

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Solution

The fourth proportional to 89,572.98, 134,411.40 and 45,203.20 is: 67,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,572.98 : 134,411.40 = 45,203.20 : x
  2. Step 2: Convert to fraction form
    89,572.98/134,411.40 = 45,203.20/x
  3. Step 3: Cross multiply
    89,572.98x = 134,411.40 × 45,203.20
  4. Step 4: Simplify right side
    89,572.98x = 6,075,825,396.48
  5. Step 5: Solve for x
    x = 6,075,825,396.48/89,572.98
  6. Step 6: Final answer
    x = 67,831.01

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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.