Home / 89,622.90-134,452.80-74,934.45

Finding the Fourth Proportional to 89,622.90, 134,452.80 and 74,934.45

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Solution

The fourth proportional to 89,622.90, 134,452.80 and 74,934.45 is: 112,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,622.90 : 134,452.80 = 74,934.45 : x
  2. Step 2: Convert to fraction form
    89,622.90/134,452.80 = 74,934.45/x
  3. Step 3: Cross multiply
    89,622.90x = 134,452.80 × 74,934.45
  4. Step 4: Simplify right side
    89,622.90x = 10,075,146,618.96
  5. Step 5: Solve for x
    x = 10,075,146,618.96/89,622.90
  6. Step 6: Final answer
    x = 112,417.10

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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.