Home / 90,494.40-124,898.88-56,518.08

Finding the Fourth Proportional to 90,494.40, 124,898.88 and 56,518.08

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Solution

The fourth proportional to 90,494.40, 124,898.88 and 56,518.08 is: 78,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,494.40 : 124,898.88 = 56,518.08 : x
  2. Step 2: Convert to fraction form
    90,494.40/124,898.88 = 56,518.08/x
  3. Step 3: Cross multiply
    90,494.40x = 124,898.88 × 56,518.08
  4. Step 4: Simplify right side
    90,494.40x = 7,059,044,891.75
  5. Step 5: Solve for x
    x = 7,059,044,891.75/90,494.40
  6. Step 6: Final answer
    x = 78,005.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.