Home / 90,153.61-124,412.05-54,334.19

Finding the Fourth Proportional to 90,153.61, 124,412.05 and 54,334.19

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Solution

The fourth proportional to 90,153.61, 124,412.05 and 54,334.19 is: 74,981.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,153.61 : 124,412.05 = 54,334.19 : x
  2. Step 2: Convert to fraction form
    90,153.61/124,412.05 = 54,334.19/x
  3. Step 3: Cross multiply
    90,153.61x = 124,412.05 × 54,334.19
  4. Step 4: Simplify right side
    90,153.61x = 6,759,828,341.94
  5. Step 5: Solve for x
    x = 6,759,828,341.94/90,153.61
  6. Step 6: Final answer
    x = 74,981.23

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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.