Home / 90,210.48-124,460.12-52,453.68

Finding the Fourth Proportional to 90,210.48, 124,460.12 and 52,453.68

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Solution

The fourth proportional to 90,210.48, 124,460.12 and 52,453.68 is: 72,368.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,210.48 : 124,460.12 = 52,453.68 : x
  2. Step 2: Convert to fraction form
    90,210.48/124,460.12 = 52,453.68/x
  3. Step 3: Cross multiply
    90,210.48x = 124,460.12 × 52,453.68
  4. Step 4: Simplify right side
    90,210.48x = 6,528,391,307.24
  5. Step 5: Solve for x
    x = 6,528,391,307.24/90,210.48
  6. Step 6: Final answer
    x = 72,368.44

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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.