Home / 90,019.35-135,014.85-56,637.23

Finding the Fourth Proportional to 90,019.35, 135,014.85 and 56,637.23

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Solution

The fourth proportional to 90,019.35, 135,014.85 and 56,637.23 is: 84,946.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,019.35 : 135,014.85 = 56,637.23 : x
  2. Step 2: Convert to fraction form
    90,019.35/135,014.85 = 56,637.23/x
  3. Step 3: Cross multiply
    90,019.35x = 135,014.85 × 56,637.23
  4. Step 4: Simplify right side
    90,019.35x = 7,646,866,437.79
  5. Step 5: Solve for x
    x = 7,646,866,437.79/90,019.35
  6. Step 6: Final answer
    x = 84,946.92

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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.