Home / 90,384.36-124,714.72-52,135.32

Finding the Fourth Proportional to 90,384.36, 124,714.72 and 52,135.32

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Solution

The fourth proportional to 90,384.36, 124,714.72 and 52,135.32 is: 71,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,384.36 : 124,714.72 = 52,135.32 : x
  2. Step 2: Convert to fraction form
    90,384.36/124,714.72 = 52,135.32/x
  3. Step 3: Cross multiply
    90,384.36x = 124,714.72 × 52,135.32
  4. Step 4: Simplify right side
    90,384.36x = 6,502,041,835.91
  5. Step 5: Solve for x
    x = 6,502,041,835.91/90,384.36
  6. Step 6: Final answer
    x = 71,937.69

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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.