Home / 90,887.86-136,237.02-53,417.26

Finding the Fourth Proportional to 90,887.86, 136,237.02 and 53,417.26

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Solution

The fourth proportional to 90,887.86, 136,237.02 and 53,417.26 is: 80,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,887.86 : 136,237.02 = 53,417.26 : x
  2. Step 2: Convert to fraction form
    90,887.86/136,237.02 = 53,417.26/x
  3. Step 3: Cross multiply
    90,887.86x = 136,237.02 × 53,417.26
  4. Step 4: Simplify right side
    90,887.86x = 7,277,408,318.97
  5. Step 5: Solve for x
    x = 7,277,408,318.97/90,887.86
  6. Step 6: Final answer
    x = 80,070.19

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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.