Home / 94,771.80-130,678.46-77,490.25

Finding the Fourth Proportional to 94,771.80, 130,678.46 and 77,490.25

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Solution

The fourth proportional to 94,771.80, 130,678.46 and 77,490.25 is: 106,849.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,771.80 : 130,678.46 = 77,490.25 : x
  2. Step 2: Convert to fraction form
    94,771.80/130,678.46 = 77,490.25/x
  3. Step 3: Cross multiply
    94,771.80x = 130,678.46 × 77,490.25
  4. Step 4: Simplify right side
    94,771.80x = 10,126,306,111.46
  5. Step 5: Solve for x
    x = 10,126,306,111.46/94,771.80
  6. Step 6: Final answer
    x = 106,849.36

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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.