Home / 85,574.52-128,263.02-46,048.60

Finding the Fourth Proportional to 85,574.52, 128,263.02 and 46,048.60

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Solution

The fourth proportional to 85,574.52, 128,263.02 and 46,048.60 is: 69,019.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,574.52 : 128,263.02 = 46,048.60 : x
  2. Step 2: Convert to fraction form
    85,574.52/128,263.02 = 46,048.60/x
  3. Step 3: Cross multiply
    85,574.52x = 128,263.02 × 46,048.60
  4. Step 4: Simplify right side
    85,574.52x = 5,906,332,502.77
  5. Step 5: Solve for x
    x = 5,906,332,502.77/85,574.52
  6. Step 6: Final answer
    x = 69,019.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.