Home / 89,827.80-134,741.70-30,643.80

Finding the Fourth Proportional to 89,827.80, 134,741.70 and 30,643.80

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Solution

The fourth proportional to 89,827.80, 134,741.70 and 30,643.80 is: 45,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,827.80 : 134,741.70 = 30,643.80 : x
  2. Step 2: Convert to fraction form
    89,827.80/134,741.70 = 30,643.80/x
  3. Step 3: Cross multiply
    89,827.80x = 134,741.70 × 30,643.80
  4. Step 4: Simplify right side
    89,827.80x = 4,128,997,706.46
  5. Step 5: Solve for x
    x = 4,128,997,706.46/89,827.80
  6. Step 6: Final answer
    x = 45,965.70

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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.