Home / 89,400.51-133,896.65-42,686.19

Finding the Fourth Proportional to 89,400.51, 133,896.65 and 42,686.19

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Solution

The fourth proportional to 89,400.51, 133,896.65 and 42,686.19 is: 63,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,400.51 : 133,896.65 = 42,686.19 : x
  2. Step 2: Convert to fraction form
    89,400.51/133,896.65 = 42,686.19/x
  3. Step 3: Cross multiply
    89,400.51x = 133,896.65 × 42,686.19
  4. Step 4: Simplify right side
    89,400.51x = 5,715,537,628.83
  5. Step 5: Solve for x
    x = 5,715,537,628.83/89,400.51
  6. Step 6: Final answer
    x = 63,931.82

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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.