Home / 66,056.40-99,084.60-42,436.80

Finding the Fourth Proportional to 66,056.40, 99,084.60 and 42,436.80

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Solution

The fourth proportional to 66,056.40, 99,084.60 and 42,436.80 is: 63,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,056.40 : 99,084.60 = 42,436.80 : x
  2. Step 2: Convert to fraction form
    66,056.40/99,084.60 = 42,436.80/x
  3. Step 3: Cross multiply
    66,056.40x = 99,084.60 × 42,436.80
  4. Step 4: Simplify right side
    66,056.40x = 4,204,833,353.28
  5. Step 5: Solve for x
    x = 4,204,833,353.28/66,056.40
  6. Step 6: Final answer
    x = 63,655.20

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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.