Home / 85,700.23-118,280.25-51,242.63

Finding the Fourth Proportional to 85,700.23, 118,280.25 and 51,242.63

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Solution

The fourth proportional to 85,700.23, 118,280.25 and 51,242.63 is: 70,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,700.23 : 118,280.25 = 51,242.63 : x
  2. Step 2: Convert to fraction form
    85,700.23/118,280.25 = 51,242.63/x
  3. Step 3: Cross multiply
    85,700.23x = 118,280.25 × 51,242.63
  4. Step 4: Simplify right side
    85,700.23x = 6,060,990,495.66
  5. Step 5: Solve for x
    x = 6,060,990,495.66/85,700.23
  6. Step 6: Final answer
    x = 70,723.16

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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.