Home / 90,457.84-135,515.50-60,381.39

Finding the Fourth Proportional to 90,457.84, 135,515.50 and 60,381.39

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Solution

The fourth proportional to 90,457.84, 135,515.50 and 60,381.39 is: 90,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,457.84 : 135,515.50 = 60,381.39 : x
  2. Step 2: Convert to fraction form
    90,457.84/135,515.50 = 60,381.39/x
  3. Step 3: Cross multiply
    90,457.84x = 135,515.50 × 60,381.39
  4. Step 4: Simplify right side
    90,457.84x = 8,182,614,518.49
  5. Step 5: Solve for x
    x = 8,182,614,518.49/90,457.84
  6. Step 6: Final answer
    x = 90,457.77

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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.