Home / 87,746.80-121,082.48-53,739.76

Finding the Fourth Proportional to 87,746.80, 121,082.48 and 53,739.76

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Solution

The fourth proportional to 87,746.80, 121,082.48 and 53,739.76 is: 74,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,746.80 : 121,082.48 = 53,739.76 : x
  2. Step 2: Convert to fraction form
    87,746.80/121,082.48 = 53,739.76/x
  3. Step 3: Cross multiply
    87,746.80x = 121,082.48 × 53,739.76
  4. Step 4: Simplify right side
    87,746.80x = 6,506,943,415.40
  5. Step 5: Solve for x
    x = 6,506,943,415.40/87,746.80
  6. Step 6: Final answer
    x = 74,155.91

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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.