Home / 55,512.39-76,602.47-31,312.02

Finding the Fourth Proportional to 55,512.39, 76,602.47 and 31,312.02

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Solution

The fourth proportional to 55,512.39, 76,602.47 and 31,312.02 is: 43,207.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,512.39 : 76,602.47 = 31,312.02 : x
  2. Step 2: Convert to fraction form
    55,512.39/76,602.47 = 31,312.02/x
  3. Step 3: Cross multiply
    55,512.39x = 76,602.47 × 31,312.02
  4. Step 4: Simplify right side
    55,512.39x = 2,398,578,072.69
  5. Step 5: Solve for x
    x = 2,398,578,072.69/55,512.39
  6. Step 6: Final answer
    x = 43,207.98

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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.