Home / 90,312.98-135,488.30-27,130.55

Finding the Fourth Proportional to 90,312.98, 135,488.30 and 27,130.55

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Solution

The fourth proportional to 90,312.98, 135,488.30 and 27,130.55 is: 40,701.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,312.98 : 135,488.30 = 27,130.55 : x
  2. Step 2: Convert to fraction form
    90,312.98/135,488.30 = 27,130.55/x
  3. Step 3: Cross multiply
    90,312.98x = 135,488.30 × 27,130.55
  4. Step 4: Simplify right side
    90,312.98x = 3,675,871,284.47
  5. Step 5: Solve for x
    x = 3,675,871,284.47/90,312.98
  6. Step 6: Final answer
    x = 40,701.47

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1.5x scale

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.