Home / 90,339.86-124,689.72-60,126.46

Finding the Fourth Proportional to 90,339.86, 124,689.72 and 60,126.46

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Solution

The fourth proportional to 90,339.86, 124,689.72 and 60,126.46 is: 82,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,339.86 : 124,689.72 = 60,126.46 : x
  2. Step 2: Convert to fraction form
    90,339.86/124,689.72 = 60,126.46/x
  3. Step 3: Cross multiply
    90,339.86x = 124,689.72 × 60,126.46
  4. Step 4: Simplify right side
    90,339.86x = 7,497,151,461.99
  5. Step 5: Solve for x
    x = 7,497,151,461.99/90,339.86
  6. Step 6: Final answer
    x = 82,988.30

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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.