Home / 90,014.47-135,068.85-58,417.09

Finding the Fourth Proportional to 90,014.47, 135,068.85 and 58,417.09

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Solution

The fourth proportional to 90,014.47, 135,068.85 and 58,417.09 is: 87,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,014.47 : 135,068.85 = 58,417.09 : x
  2. Step 2: Convert to fraction form
    90,014.47/135,068.85 = 58,417.09/x
  3. Step 3: Cross multiply
    90,014.47x = 135,068.85 × 58,417.09
  4. Step 4: Simplify right side
    90,014.47x = 7,890,328,828.97
  5. Step 5: Solve for x
    x = 7,890,328,828.97/90,014.47
  6. Step 6: Final answer
    x = 87,656.23

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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.