Home / 94,251.09-130,066.51-53,978.20

Finding the Fourth Proportional to 94,251.09, 130,066.51 and 53,978.20

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Solution

The fourth proportional to 94,251.09, 130,066.51 and 53,978.20 is: 74,489.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,251.09 : 130,066.51 = 53,978.20 : x
  2. Step 2: Convert to fraction form
    94,251.09/130,066.51 = 53,978.20/x
  3. Step 3: Cross multiply
    94,251.09x = 130,066.51 × 53,978.20
  4. Step 4: Simplify right side
    94,251.09x = 7,020,755,731.18
  5. Step 5: Solve for x
    x = 7,020,755,731.18/94,251.09
  6. Step 6: Final answer
    x = 74,489.91

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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.