Home / 77,306.09-106,703.40-45,485.24

Finding the Fourth Proportional to 77,306.09, 106,703.40 and 45,485.24

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Solution

The fourth proportional to 77,306.09, 106,703.40 and 45,485.24 is: 62,781.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,306.09 : 106,703.40 = 45,485.24 : x
  2. Step 2: Convert to fraction form
    77,306.09/106,703.40 = 45,485.24/x
  3. Step 3: Cross multiply
    77,306.09x = 106,703.40 × 45,485.24
  4. Step 4: Simplify right side
    77,306.09x = 4,853,429,224.30
  5. Step 5: Solve for x
    x = 4,853,429,224.30/77,306.09
  6. Step 6: Final answer
    x = 62,781.98

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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.