Home / 89,970.40-134,875.44-45,574.30

Finding the Fourth Proportional to 89,970.40, 134,875.44 and 45,574.30

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Solution

The fourth proportional to 89,970.40, 134,875.44 and 45,574.30 is: 68,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,970.40 : 134,875.44 = 45,574.30 : x
  2. Step 2: Convert to fraction form
    89,970.40/134,875.44 = 45,574.30/x
  3. Step 3: Cross multiply
    89,970.40x = 134,875.44 × 45,574.30
  4. Step 4: Simplify right side
    89,970.40x = 6,146,853,765.19
  5. Step 5: Solve for x
    x = 6,146,853,765.19/89,970.40
  6. Step 6: Final answer
    x = 68,320.85

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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.