Home / 66,756.02-92,122.48-36,128.40

Finding the Fourth Proportional to 66,756.02, 92,122.48 and 36,128.40

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Solution

The fourth proportional to 66,756.02, 92,122.48 and 36,128.40 is: 49,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.02 : 92,122.48 = 36,128.40 : x
  2. Step 2: Convert to fraction form
    66,756.02/92,122.48 = 36,128.40/x
  3. Step 3: Cross multiply
    66,756.02x = 92,122.48 × 36,128.40
  4. Step 4: Simplify right side
    66,756.02x = 3,328,237,506.13
  5. Step 5: Solve for x
    x = 3,328,237,506.13/66,756.02
  6. Step 6: Final answer
    x = 49,856.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.