Home / 90,914.53-125,541.37-56,981.35

Finding the Fourth Proportional to 90,914.53, 125,541.37 and 56,981.35

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Solution

The fourth proportional to 90,914.53, 125,541.37 and 56,981.35 is: 78,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,914.53 : 125,541.37 = 56,981.35 : x
  2. Step 2: Convert to fraction form
    90,914.53/125,541.37 = 56,981.35/x
  3. Step 3: Cross multiply
    90,914.53x = 125,541.37 × 56,981.35
  4. Step 4: Simplify right side
    90,914.53x = 7,153,516,458.26
  5. Step 5: Solve for x
    x = 7,153,516,458.26/90,914.53
  6. Step 6: Final answer
    x = 78,683.98

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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.