Home / 90,901.85-136,307.15-52,963.40

Finding the Fourth Proportional to 90,901.85, 136,307.15 and 52,963.40

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Solution

The fourth proportional to 90,901.85, 136,307.15 and 52,963.40 is: 79,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,901.85 : 136,307.15 = 52,963.40 : x
  2. Step 2: Convert to fraction form
    90,901.85/136,307.15 = 52,963.40/x
  3. Step 3: Cross multiply
    90,901.85x = 136,307.15 × 52,963.40
  4. Step 4: Simplify right side
    90,901.85x = 7,219,290,108.31
  5. Step 5: Solve for x
    x = 7,219,290,108.31/90,901.85
  6. Step 6: Final answer
    x = 79,418.52

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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.