Home / 90,220.02-124,501.64-49,931.34

Finding the Fourth Proportional to 90,220.02, 124,501.64 and 49,931.34

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Solution

The fourth proportional to 90,220.02, 124,501.64 and 49,931.34 is: 68,904.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,220.02 : 124,501.64 = 49,931.34 : x
  2. Step 2: Convert to fraction form
    90,220.02/124,501.64 = 49,931.34/x
  3. Step 3: Cross multiply
    90,220.02x = 124,501.64 × 49,931.34
  4. Step 4: Simplify right side
    90,220.02x = 6,216,533,717.40
  5. Step 5: Solve for x
    x = 6,216,533,717.40/90,220.02
  6. Step 6: Final answer
    x = 68,904.15

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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.