Home / 85,523.17-118,038.18-56,400.25

Finding the Fourth Proportional to 85,523.17, 118,038.18 and 56,400.25

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Solution

The fourth proportional to 85,523.17, 118,038.18 and 56,400.25 is: 77,843.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,523.17 : 118,038.18 = 56,400.25 : x
  2. Step 2: Convert to fraction form
    85,523.17/118,038.18 = 56,400.25/x
  3. Step 3: Cross multiply
    85,523.17x = 118,038.18 × 56,400.25
  4. Step 4: Simplify right side
    85,523.17x = 6,657,382,861.55
  5. Step 5: Solve for x
    x = 6,657,382,861.55/85,523.17
  6. Step 6: Final answer
    x = 77,843.03

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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.