Home / 98,045.28-135,326.52-55,628.64

Finding the Fourth Proportional to 98,045.28, 135,326.52 and 55,628.64

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Solution

The fourth proportional to 98,045.28, 135,326.52 and 55,628.64 is: 76,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,045.28 : 135,326.52 = 55,628.64 : x
  2. Step 2: Convert to fraction form
    98,045.28/135,326.52 = 55,628.64/x
  3. Step 3: Cross multiply
    98,045.28x = 135,326.52 × 55,628.64
  4. Step 4: Simplify right side
    98,045.28x = 7,528,030,263.53
  5. Step 5: Solve for x
    x = 7,528,030,263.53/98,045.28
  6. Step 6: Final answer
    x = 76,781.16

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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.