Home / 89,547.40-134,321.10-66,219.40

Finding the Fourth Proportional to 89,547.40, 134,321.10 and 66,219.40

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Solution

The fourth proportional to 89,547.40, 134,321.10 and 66,219.40 is: 99,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,547.40 : 134,321.10 = 66,219.40 : x
  2. Step 2: Convert to fraction form
    89,547.40/134,321.10 = 66,219.40/x
  3. Step 3: Cross multiply
    89,547.40x = 134,321.10 × 66,219.40
  4. Step 4: Simplify right side
    89,547.40x = 8,894,662,649.34
  5. Step 5: Solve for x
    x = 8,894,662,649.34/89,547.40
  6. Step 6: Final answer
    x = 99,329.10

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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.