Home / 85,417.27-128,126.36-56,021.26

Finding the Fourth Proportional to 85,417.27, 128,126.36 and 56,021.26

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Solution

The fourth proportional to 85,417.27, 128,126.36 and 56,021.26 is: 84,032.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,417.27 : 128,126.36 = 56,021.26 : x
  2. Step 2: Convert to fraction form
    85,417.27/128,126.36 = 56,021.26/x
  3. Step 3: Cross multiply
    85,417.27x = 128,126.36 × 56,021.26
  4. Step 4: Simplify right side
    85,417.27x = 7,177,799,946.15
  5. Step 5: Solve for x
    x = 7,177,799,946.15/85,417.27
  6. Step 6: Final answer
    x = 84,032.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.