Home / 99,347.72-137,065.06-56,320.92

Finding the Fourth Proportional to 99,347.72, 137,065.06 and 56,320.92

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Solution

The fourth proportional to 99,347.72, 137,065.06 and 56,320.92 is: 77,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,347.72 : 137,065.06 = 56,320.92 : x
  2. Step 2: Convert to fraction form
    99,347.72/137,065.06 = 56,320.92/x
  3. Step 3: Cross multiply
    99,347.72x = 137,065.06 × 56,320.92
  4. Step 4: Simplify right side
    99,347.72x = 7,719,630,349.46
  5. Step 5: Solve for x
    x = 7,719,630,349.46/99,347.72
  6. Step 6: Final answer
    x = 77,703.15

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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.