Home / 98,485.07-135,908.55-56,045.93

Finding the Fourth Proportional to 98,485.07, 135,908.55 and 56,045.93

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Solution

The fourth proportional to 98,485.07, 135,908.55 and 56,045.93 is: 77,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,485.07 : 135,908.55 = 56,045.93 : x
  2. Step 2: Convert to fraction form
    98,485.07/135,908.55 = 56,045.93/x
  3. Step 3: Cross multiply
    98,485.07x = 135,908.55 × 56,045.93
  4. Step 4: Simplify right side
    98,485.07x = 7,617,120,400.16
  5. Step 5: Solve for x
    x = 7,617,120,400.16/98,485.07
  6. Step 6: Final answer
    x = 77,342.90

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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.