Home / 90,434.55-135,678.35-40,503.52

Finding the Fourth Proportional to 90,434.55, 135,678.35 and 40,503.52

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Solution

The fourth proportional to 90,434.55, 135,678.35 and 40,503.52 is: 60,767.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,434.55 : 135,678.35 = 40,503.52 : x
  2. Step 2: Convert to fraction form
    90,434.55/135,678.35 = 40,503.52/x
  3. Step 3: Cross multiply
    90,434.55x = 135,678.35 × 40,503.52
  4. Step 4: Simplify right side
    90,434.55x = 5,495,450,762.79
  5. Step 5: Solve for x
    x = 5,495,450,762.79/90,434.55
  6. Step 6: Final answer
    x = 60,767.16

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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.