Home / 90,275.10-124,568.91-55,814.46

Finding the Fourth Proportional to 90,275.10, 124,568.91 and 55,814.46

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Solution

The fourth proportional to 90,275.10, 124,568.91 and 55,814.46 is: 77,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,275.10 : 124,568.91 = 55,814.46 : x
  2. Step 2: Convert to fraction form
    90,275.10/124,568.91 = 55,814.46/x
  3. Step 3: Cross multiply
    90,275.10x = 124,568.91 × 55,814.46
  4. Step 4: Simplify right side
    90,275.10x = 6,952,746,444.44
  5. Step 5: Solve for x
    x = 6,952,746,444.44/90,275.10
  6. Step 6: Final answer
    x = 77,017.32

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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.