Home / 90,416.40-124,749.31-52,683.36

Finding the Fourth Proportional to 90,416.40, 124,749.31 and 52,683.36

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Solution

The fourth proportional to 90,416.40, 124,749.31 and 52,683.36 is: 72,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,416.40 : 124,749.31 = 52,683.36 : x
  2. Step 2: Convert to fraction form
    90,416.40/124,749.31 = 52,683.36/x
  3. Step 3: Cross multiply
    90,416.40x = 124,749.31 × 52,683.36
  4. Step 4: Simplify right side
    90,416.40x = 6,572,212,808.48
  5. Step 5: Solve for x
    x = 6,572,212,808.48/90,416.40
  6. Step 6: Final answer
    x = 72,688.28

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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.