Home / 90,275.84-135,416.88-42,866.52

Finding the Fourth Proportional to 90,275.84, 135,416.88 and 42,866.52

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Solution

The fourth proportional to 90,275.84, 135,416.88 and 42,866.52 is: 64,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,275.84 : 135,416.88 = 42,866.52 : x
  2. Step 2: Convert to fraction form
    90,275.84/135,416.88 = 42,866.52/x
  3. Step 3: Cross multiply
    90,275.84x = 135,416.88 × 42,866.52
  4. Step 4: Simplify right side
    90,275.84x = 5,804,850,394.86
  5. Step 5: Solve for x
    x = 5,804,850,394.86/90,275.84
  6. Step 6: Final answer
    x = 64,301.26

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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.