Home / 90,916.53-125,544.13-56,983.35

Finding the Fourth Proportional to 90,916.53, 125,544.13 and 56,983.35

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Solution

The fourth proportional to 90,916.53, 125,544.13 and 56,983.35 is: 78,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,916.53 : 125,544.13 = 56,983.35 : x
  2. Step 2: Convert to fraction form
    90,916.53/125,544.13 = 56,983.35/x
  3. Step 3: Cross multiply
    90,916.53x = 125,544.13 × 56,983.35
  4. Step 4: Simplify right side
    90,916.53x = 7,153,925,100.24
  5. Step 5: Solve for x
    x = 7,153,925,100.24/90,916.53
  6. Step 6: Final answer
    x = 78,686.74

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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.